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<!DOCTYPE spec PUBLIC "-//W3C//DTD Specification V2.2//EN" "http://www.w3.org/2002/xmlspec/dtd/2.2/xmlspec.dtd">
<spec w3c-doctype="wd" role="public">

<header>
  <title>Web Services Description Language (WSDL) Version 1.2</title>
  <w3c-designation>http://www.w3.org/TR/2003/WD-wsdl12-20030124</w3c-designation>
  <w3c-doctype>W3C Working Draft</w3c-doctype>
  <pubdate>
    <day>24</day>
    <month>January</month>
    <year>2003</year>
  </pubdate>
  <publoc>
    <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2003/WD-wsdl12-20030124">http://www.w3.org/TR/2003/WD-wsdl12-20030124</loc>
  </publoc>
  <altlocs>
	<loc xmlns:xlink="http://www.w3.org/1999/xlink" role="postscript" href="http://www.w3.org/TR/2003/WD-wsdl12-20030124/wsdl12.ps" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">postscript</loc>
	<loc xmlns:xlink="http://www.w3.org/1999/xlink" role="pdf" href="http://www.w3.org/TR/2003/WD-wsdl12-20030124/wsdl12.pdf" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">PDF</loc>
	<loc xmlns:xlink="http://www.w3.org/1999/xlink" role="xml" href="http://www.w3.org/TR/2003/WD-wsdl12-20030124/wsdl12.xml" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">XML</loc>
	<loc xmlns:xlink="http://www.w3.org/1999/xlink" role="plain" href="http://www.w3.org/TR/2003/WD-wsdl12-20030124/wsdl12.txt" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">plain text</loc>
    </altlocs>
  <prevlocs>
    <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2002/WD-wsdl12-20020709">http://www.w3.org/TR/2002/WD-wsdl12-20020709</loc>
  </prevlocs>
  <latestloc>
    <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/wsdl12">http://www.w3.org/TR/wsdl12</loc>
  </latestloc>
  
  <authlist>
    <author>
      <name>Roberto Chinnici</name>
      <affiliation>Sun Microsystems</affiliation>
    </author>
    <author>
      <name>Martin Gudgin</name>
      <affiliation>Microsoft</affiliation>
    </author>
    <author>
      <name>Jean-Jacques Moreau</name>
      <affiliation>Canon</affiliation>
    </author>
    <author>
      <name>Sanjiva Weerawarana</name>
      <affiliation>IBM Research</affiliation>
    </author>
  </authlist>

    <abstract id="Abstract">
      <p>
	This document describes the Web Services Description Language
	(WSDL) Version 1.2, an XML language for describing Web
	services. This specification defines the core language which can
	be used to describe Web services based on an abstract model of
	what the service offers.
      </p>
    </abstract>    
    
<status id="Status">
    <p>
      <emph>This section describes the status of this document at the time
    of its publication. Other documents may supersede this document. The
	latest status of this document series is maintained at the W3C.</emph>
    </p>
    <p>
      This is a <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/Consortium/Process-20010719/tr.html#RecsWD">W3C
	Working Draft</loc> of the Web Services Description Language
      (WSDL) 1.2 document.
    </p>
    <p>
      This document has been produced as part of the <loc xmlns:xlink="http://www.w3.org/1999/xlink" href="http://www.w3.org/2002/ws/Activity.html" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">W3C Web Services
      Activity</loc>. The authors of this document are the Web Services
      Description Working Group members.
    </p>
    <p>
      This is a draft document and may be updated, replaced or obsoleted
      by other documents at any time. It is inappropriate to use W3C
      Working Drafts as reference material or to cite them as other than
      "work in progress". This is work in progress and does not imply
      endorsement by, or the consensus of, either W3C or members of the
      Web Services Description Working Group.
    </p>
    <p>
      Comments on this document are invited and are to be sent to <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="mailto:public-ws-desc-comments@w3.org">public-ws-desc-comments@w3.org</loc>
      (<loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://lists.w3.org/Archives/Public/public-ws-desc-comments/">public
      archive</loc>). It is inappropriate to send discussion emails to
      this address. Discussion of this document takes place on the
      public <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="mailto:www-ws-desc@w3.org">www-ws-desc@w3.org</loc> mailing
      list (<loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://lists.w3.org/Archives/Public/www-ws-desc/">public
      archive</loc>).
    </p>
    <p>
      Patent disclosures relevant to this specification may be found on
      the Working Group's <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/2002/ws/desc/2/04/24-IPR-statements.html">patent
      disclosure page</loc>.
    </p>
    <p>
      A list of <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/">current W3C
      Recommendations and other technical documents</loc> can be found
      at http://www.w3.org/TR.
    </p>
</status>

  <langusage>
    <language id="en">English</language>
  </langusage>
  <revisiondesc>
    <p>Last Modified: $Date: 2003/01/23 21:33:44 $</p>
  </revisiondesc>
</header>

<!-- ******************************************************************* -->

<body>

<div1 id="intro">
<head>Introduction</head>

<p>Web Services Description Language (WSDL) provides a model and an XML format for
describing Web services. WSDL enables one to separate the description
of the abstract functionality offered by a service from concrete
details of a service description such as "how" and "where" that
functionality is offered.</p>

<p>This specification defines a language for describing the abstract
functionality of a service as well as a framework for describing the
concrete details of a service description. The companion
specification, <emph>WSDL Version 1.2: Bindings</emph> <bibref ref="WSDL-PART2"/> defines a language for describing such concrete
details for SOAP 1.2 <bibref ref="SOAP12-PART1"/>, HTTP <bibref ref="RFC2616"/> and MIME <bibref ref="RFC2045"/>.</p>

<p>WSDL describes Web services starting with the
<emph>messages</emph> that are exchanged between the service provider
and requestor. The messages themselves are described abstractly and
then bound to a concrete network protocol and message format. A
message consists of a collection of typed data items. An exchange of
messages between the service provider and requestor are described as
an <emph>operation</emph>. A collection of operations is called a
<emph>port type</emph>. A <emph>service</emph> contains a collection of
<emph>ports</emph>, where each port is an implementation of a
portType, which includes all the concrete details needed to interact
with the service.</p>

<!-- +++++++++ -->

<div2 id="notation">
<head>Notational Conventions</head>

<p>The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in
   this document are to be interpreted as described in RFC 2119
   <bibref ref="RFC2119"/>.</p>

<p>This specification uses properties from the XML Information Set
<bibref ref="XMLInfoSet"/>. Such properties are denoted by square
brackets, e.g. [namespace name].</p>

<p>This specification uses namespace prefixes throughout; they are
   listed in <specref ref="tabnsprefixes"/>.  Note that the choice of
   any namespace prefix is arbitrary and not semantically significant
   (see <bibref ref="XMLInfoSet"/>).</p>
        
<table border="1" summary="Mapping of prefixes used in this document to their   associated namespace name" id="tabnsprefixes">
  <caption>Prefixes and Namespaces used in this specification.</caption>
  <tbody>
    <tr>
      <th rowspan="1" colspan="1">Prefix</th> 
      <th rowspan="1" colspan="1">Namespace</th>
      <th rowspan="1" colspan="1">Notes</th>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">wsdl</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2003/01/wsdl</attval></td>
      <td rowspan="1" colspan="1">A normative XML Schema <bibref ref="XMLSchemaP1"/>,
        <bibref ref="XMLSchemaP2"/> document for the
        <attval>http://www.w3.org/2003/01/wsdl</attval>
        namespace can be found at <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" href="http://www.w3.org/2003/01/wsdl" xlink:show="replace" xlink:actuate="onRequest">http://www.w3.org/2003/01/wsdl</loc>.</td>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">soap12</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2003/01/wsdl/soap12</attval></td>
      <td rowspan="3" colspan="1">Defined by WSDL 1.2: Bindings <bibref ref="WSDL-PART2"/>.</td>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">http</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2003/01/wsdl/http</attval></td>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">mime</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2003/01/wsdl/mime</attval></td>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">xs</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2001/XMLSchema</attval></td>
            <td rowspan="2" colspan="1">Defined in the W3C XML Schema
          specification <bibref ref="XMLSchemaP1"/>, <bibref ref="XMLSchemaP2"/>.</td>
    </tr>
    <tr>
      <td rowspan="1" colspan="1">xsi</td>
      <td rowspan="1" colspan="1"><attval>http://www.w3.org/2001/XMLSchema-instance</attval></td>
    </tr>
  </tbody>
</table>

<p>Namespace names of the general form
   <attval>http://example.org/...</attval> and
   <attval>http://example.com/...</attval> represent application or
   context-dependent URIs <bibref ref="RFC2396"/>.</p>

<p>All parts of this specification are normative, with the exception
   of examples and sections explicitly marked as "Non-Normative".</p>

</div2>

</div1>

<!-- ******************************************************************* -->

<div1 id="component_model">
<head>Component Model</head>

  <p>
  This section describes the conceptual model for WSDL as a set of
  components with properties, each aspect of a Web service that WSDL
  can describe having its own property. In addition an XML Infoset
  representation for these components is provided, along with a
  mapping from that representation to the various component
  properties. How the XML Infoset representation of a given set of
  WSDL components is constructed is outside the scope of this
  specification.
  </p>

  <div2 id="Definitions">
    <head>Definitions</head>
    <div3 id="Definitions_details">
      <head>The Definitions Component</head>
      <p>
	  At the abstract level, the Definitions Component is just a
      container for two categories of component; WSDL
      components and type system components. WSDL components are
      messages, port types, bindings and 
      services. 
	  </p>
      <p>Type system components are element declarations and type
      definitions drawn from some type system. The former define the
      [local name], [namespace name], [children] and [attributes]
      properties of an <emph>element information item</emph>; the latter define only the [children] and
      [attributes] properties.
	  </p>

      <p>The properties of the Definitions Component are as follows:</p>
	  <ulist>
	    <item><p>{messages} A set of named message definitions</p></item>
	    <item><p>{port types} A set of named port type definitions</p></item>
	    <item><p>{bindings} A set of named binding definitions</p></item>
	    <item><p>{services} A set of named service
	    definitions</p></item>
	    <item>
		  <p>{type definitions} A set of named type definitions, each
		  one isomorphic to a simple or complex type as defined by XML
		  Schema
		  </p>
		</item>
	    <item>
		  <p>{element declarations} A set of named element
		  declarations, each one isomorphic to a global element
		  declaration as defined by XML Schema
		  </p>
		</item>
	  </ulist>
    </div3>

    <div3 id="Definitions_XMLRep">
      <head>XML Representation of Definitions Component</head>
      <p>
	  WSDL definitions are represented in XML by one or more WSDL
	  Information Sets (Infosets),
	  that is one or more <el>definitions</el> <emph>element information item</emph>s. A WSDL
	  Infoset contains representations for a collection of WSDL components which
	  share a common target namespace. A WSDL Infoset which contains one
	  or more <el>import</el> <emph>element information item</emph>s <specref ref="imports"/> corresponds to a collection with
	  components drawn from multiple target namespaces.
	  </p>
	  <p>The <el>definitions</el> <emph>element information item</emph> has the following Infoset properties:</p>
	  <ulist>
	    <item><p>A [local name] of <el>definitions</el>.</p></item>
		<item><p>A [namespace name] of
		<attval>http://www.w3.org/2003/01/wsdl</attval>.</p></item>
		<item>
		  <p>
		  One or more <emph>attribute information item</emph>s amongst its [attributes] as follows;
		  </p>
		  <ulist>
		    <item>
		      <p>
			  A <att>targetNamespace</att> <emph>attribute information item</emph> as described below in
			  <specref ref="Definitions_targetnamespace_attribute"/>.
			  </p>
		    </item>
			<item>
			  <p>
			  Zero or more namespace qualified <emph>attribute information item</emph>s. The [namespace
			  name] of such <emph>attribute information item</emph>s MUST NOT be
			  <attval>http://www.w3.org/2003/01/wsdl</attval>.
			  </p>
			</item>
		  </ulist>
		</item>
		<item>
		  <p>
		  Zero or more <emph>element information item</emph>s amongst its [children], in order as
		  follows;
		  </p> 
		  <olist>
		    <item>
			  <p>
			  An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
			  </p>
			</item>
			<item>
			  <p>Zero or more <emph>element information item</emph>s from among the following, in any
			  order:
			  </p>
			  <olist>
			    <item>
				  <p>
				  Zero or more <el>include</el> <emph>element information item</emph>s (see <specref ref="includes"/>)
				  </p>
				</item>
			    <item>
				  <p>
				  Zero or more <el>import</el> <emph>element information item</emph>s (see <specref ref="imports"/>)
				  </p>
				</item>
			  </olist>
			</item>
			<item>
			  <p>
			  An optional <el>types</el> <emph>element information item</emph> (see <specref ref="eii-types"/>).
			  </p>
			</item>
			<item>
			  <p>
			  Zero or more <emph>element information item</emph>s from among the following, in any
			  order:
			  </p>
			  <olist>
			    <item>
			      <p>
				  <el>message</el> <emph>element information item</emph>s (see <specref ref="Message_XMLRep"/>).
				  </p>
		        </item>
			    <item>
			      <p>
			      <el>portType</el> <emph>element information item</emph>s (see <specref ref="PortType_XMLRep"/>).
			      </p>
			    </item>
			    <item>
			      <p>
			      <el>binding</el> <emph>element information item</emph>s (see <specref ref="Binding_XMLRep"/>).
			      </p>
			    </item>
			    <item>
			      <p>
			      <el>service</el> <emph>element information item</emph>s (see <specref ref="Service_XMLRep"/>).
			      </p>
			    </item>
	          </olist>
		    </item>
          </olist>
        </item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups allowed
		  at the top-level of a WSDL document as described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
      </ulist>

      <div4 id="Definitions_targetnamespace_attribute">
        <head><att>targetNamespace</att> <emph>attribute information item</emph></head>
		<p>The <att>targetNamespace</att> <emph>attribute information item</emph> defines the namespace affiliation
	    of top-level components defined in this
		<el>definitions</el> <emph>element information item</emph>. Messages, port types,
		bindings and services are top level components. 
		</p>
	    <p>
		The <att>targetNamespace</att> <emph>attribute information item</emph> has the following
		Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>targetNamespace</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>targetNamespace</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.
		</p>
      </div4>
    </div3>

    <div3 id="Definitions_Mapping">
      <head>Mapping Definitions' XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Definitions Component
	  (see <specref ref="Definitions_details"/>) and the XML
	  Representation of the <el>definitions</el> <emph>element information item</emph> (see <specref ref="Definitions_XMLRep"/>) is described
	  in <specref ref="tab_Definitions_Mapping"/>.
	  </p>
	  <table border="1" id="tab_Definitions_Mapping">
	    <caption>Mapping between Definitions Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{messages}</td>
			<td rowspan="1" colspan="1">
			The message definitions corresponding to all the
			<el>message</el> <emph>element information item</emph>s in the [children] of the
			<el>definitions</el> <emph>element information item</emph>, if any, plus any included or imported
			definitions (see <specref ref="modularize"/>).
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{port types}</td>
			<td rowspan="1" colspan="1">
			The port type definitions corresponding to all the
			<el>portType</el> <emph>element information item</emph>s in the [children] of the
			<el>definitions</el> <emph>element information item</emph>, if any, plus any included or imported
			definitions (see <specref ref="modularize"/>).
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{bindings}</td>
			<td rowspan="1" colspan="1">
			The binding definitions corresponding to all the
			<el>binding</el> <emph>element information item</emph>s in the [children] of the
			<el>definitions</el> <emph>element information item</emph>, if any, plus any included or imported
			definitions (see <specref ref="modularize"/>).
			</td>
                  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{services}</td>
			<td rowspan="1" colspan="1">
			The service definitions corresponding to all the
			<el>service</el> <emph>element information item</emph>s in the [children] of the
			<el>definitions</el> <emph>element information item</emph>, if any, plus any included or imported
			definitions (see <specref ref="modularize"/>).
		    </td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{type definitions}</td>
			<td rowspan="1" colspan="1">
			The type definition components corresponding to all the
			type definitions defined as descendants of the
			<el>types</el> <emph>element information item</emph>, if any, plus any imported
			definitions. At a minimum this will include all the types
			defined by XML Schema <el>simpleType</el> and
			<el>complexType</el> <emph>element information item</emph>s. It MAY also include any
			definition from some other type system which describes
			the [attributes] and [children] properties of an <emph>element information item</emph>.
		    </td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{element declarations}</td>
			<td rowspan="1" colspan="1">
			The element declaration components corresponding to all the
			element declarations defined as descendants of the
			<el>types</el> <emph>element information item</emph>, if any, plus any imported
			definitions. At a minimum this will include all	the global
			element declarations defined by XML Schema
			<el>element</el> <emph>element information item</emph>s. It MAY also include any
			definition from some other type system which describes
			the [local name], [namespace name], [attributes] and
			[children] properties of an <emph>element information item</emph>. 
		    </td>
		  </tr>
		</tbody>
	  </table>
    </div3>
  </div2>

  <div2 id="Message">
    <head>Message</head>
    <div3 id="Message_details">
      <head>The Message Component</head>
      <p>
	  A message component describes the abstract format of a
	  particular message that a Web service sends or receives. 
      The format of a message is typically described in terms of XML
	  <emph>element information item</emph>s and <emph>attribute information item</emph>s. A message binding (see <specref ref="Binding"/>)
	  describes how the abstract 
	  content is mapped into a concrete format. However, in some
	  cases, the abstract definition may match the concrete
	  representation very closely or exactly for one or more bindings.
	  Such bindings will supply little or no mapping
	  information.  However, another binding of the same message
	  definition may require extensive mapping information. For this
	  reason, it is not until the binding is inspected that one can
	  determine "how abstract" a message really is.
	  </p>

	  <p>
	  Messages are named constructs and can be referred to by
	  QName (see <specref ref="qnameres"/>). For instance, port type components refer to messages in
	  this way (see <specref ref="MessageReference"/>).
	  </p>

	  <p>The properties of the Message Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
	    <item><p>{target namespace} A namespace name, as defined in <bibref ref="XMLNS"/>.</p></item> 
  	    <item><p>{parts} A set of named part definitions.</p></item>
	  </ulist>
	  <p>
	  For each message component in the {messages} property of a
	  definitions container the combination of {name} and {target 
	  namespace} properties MUST be unique.
	  </p>

    </div3>

    <div3 id="Message_XMLRep">
      <head>XML Representation of Message Component</head>
      <p>
	  The XML representation for a message definition component is an
	  <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>message</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as follows;</p>
		  <ulist>
		  <item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> as described below in <specref ref="Message_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s.
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item>
		  <p>
		  Zero or more <emph>element information item</emph>s amongst its [children], in order as
		  follows;
		  </p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>
		    <item>
			  <p>
			  Zero or more <el>part</el> <emph>element information item</emph>s (see <specref ref="Part_XMLRep"/>)
			  </p>
			</item>
		  </ulist>
        </item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to messages described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
      </ulist>

      <div4 id="Message_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>message</el> [owner]</head>
		<p>
		The <att>name</att> <emph>attribute information item</emph> together with the
		<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el>
		<emph>element information item</emph> forms the QName of the message,
		</p>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> has the following
		Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>
    </div3>

    <div3 id="Message_Mapping">
	  <head>Mapping Message's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Message Component (see
	  <specref ref="Message_details"/>) and the XML Representation of
	  the <el>message</el> <emph>element information item</emph> (see <specref ref="Message_XMLRep"/>) is
	  as described in <specref ref="tab_Message_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Message_Mapping">
	    <caption>Mapping between Message Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{target namespace}</td>
			<td rowspan="1" colspan="1">
			The actual value of the	<att>targetNamespace</att> <emph>attribute information item</emph>
			of the [parent] <el>definitions</el>	<emph>element information item</emph>
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{parts}</td>
			<td rowspan="1" colspan="1">
			The set of part definitions corresponding to the
			<el>part</el> <emph>element information item</emph>s in [children], if any.
			</td>
          </tr>
		</tbody>
	  </table>

    </div3>
  </div2>



  <div2 id="Part">
    <head>Part</head>
    <div3 id="Part_details">
      <head>The Part Component</head>
      <p>
	  A part component describes a portion of a particular message
	  that a web service sends or receives. The format of a part is
	  described by reference to type definition or element declaration
	  components. Such components may be drawn from any appropriate
	  type system. However WSDL makes special recognition of the XML
	  Schema language <bibref ref="XMLSchemaP1"/>,<bibref ref="XMLSchemaP2"/> as the RECOMMENDED type specification
	  language (see <specref ref="eii-types"/>). 
	  </p>

	  <p>
	  Part components are local to a given message component, they
	  cannot be referred to by QName.
	  </p>
	  <p>The properties of the Part Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
	    <item>
		  <p>
		  {content reference} A reference to either an element
		  declaration or a type definition component
		  </p>
        </item>
	  </ulist>

	  <p>
	  For each part component in the {parts} property of a given message component
	  the {name} property MUST be unique.
	  </p>
    </div3>

    <div3 id="Part_XMLRep">
      <head>XML Representation of Part Component</head>
      <p>
	  The XML representation for a part definition is an <emph>element information item</emph> with
	  the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>part</el></p></item>
	    <item><p>A [namespace name] of <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
        <item><p>Two or more <emph>attribute information item</emph>s amongst its [attributes] as follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Part_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  One of the following;
		  </p>
		  <ulist>
		    <item>
			  <p>
			  An <att>element</att> <emph>attribute information item</emph> as described below in
			  <specref ref="Part_element_attribute"/>.
			  </p>
			</item>
		    <item>
			  <p>
			  A <att>type</att> <emph>attribute information item</emph> as described below in
			  <specref ref="Part_type_attribute"/>.
			  </p>
			</item>
			<item>
			  <p>
			  A namespace qualified <emph>attribute information item</emph> in a namespace other than
			  <attval>http://www.w3.org/2003/01/wsdl</attval> indicating the validation
			  rules for this part in an alternative schema
			  language.</p>
			  </item>
		  </ulist>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s.
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item><p>Zero or more <emph>element information item</emph>s amongst its [children] in order,
		as follows;</p>
		<ulist>
		<item>
		  <p>
		  An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>) amongst its [children].
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to message parts described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
		</ulist>
		</item>
      </ulist>

	  <p>
	  A part carries information about its type system by the reference contained
	  in the <att>type</att>, <att>element</att>, or alternative
	  qualified <emph>attribute information item</emph>. The schema language used is determined by examining the referred-to
	  namespace and associating it with an imported or embedded
	  schema. WSDL uses the <att>type</att> and <att>element</att>
	  <emph>attribute information item</emph>s to refer to constructs in XML Schema <bibref ref="XMLSchemaP1"/>,<bibref ref="XMLSchemaP2"/>. Alternative schema
	  languages may re-use these <emph>attribute information item</emph>s if appropriate.  If the
	  concepts embodied by the <att>type</att> and <att>element</att> <emph>attribute information item</emph> are not
	  appropriate for an alternative schema language, that language
	  should specify an alternative <emph>attribute information item</emph> with prescribed
	  semantics.  Such <emph>attribute information item</emph>s are not defined by this specification.
	  </p>

      <div4 id="Part_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>part</el> [owner]</head>
		<p>
		The <att>name</att> <emph>attribute information item</emph> identifies a given <el>part</el>
		<emph>element information item</emph> inside a given <el>message</el> <emph>element information item</emph>. 
		</p>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> has the following
		Infoset properties:
		</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Part_element_attribute">
        <head><att>element</att> <emph>attribute information item</emph></head>
		<p>
		The <att>element</att> <emph>attribute information item</emph> refers, by QName, to an
                element declaration component.
		</p>
	    <p>
		The <att>element</att> <emph>attribute information item</emph> has the following
		Infoset properties:
		</p>
		<ulist>
		  <item><p>A [local name] of <att>element</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>element</att> <emph>attribute information item</emph> is <emph>xs:QName</emph>.
		</p>
      </div4>

      <div4 id="Part_type_attribute">
        <head><att>type</att> <emph>attribute information item</emph></head>
		<p>
		The <att>type</att> <emph>attribute information item</emph> refers, by QName, to a
                type description component.
		</p>
	    <p>
		The <att>type</att> <emph>attribute information item</emph> has the following
		Infoset properties:
		</p>
		<ulist>
		  <item><p>A [local name] of <att>type</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>type</att> <emph>attribute information item</emph> is <emph>xs:QName</emph>.
		</p>
      </div4>
    </div3>

    <div3 id="Part_Mapping">
	  <head>Mapping Part's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Part Component (see
	  <specref ref="Part_details"/>) and the XML Representation of
	  the <el>part</el> <emph>element information item</emph> (see <specref ref="Part_XMLRep"/>) is
	  as described in <specref ref="tab_Part_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Part_Mapping">
	    <caption>Mapping between Part Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{content reference}</td>
			<td rowspan="1" colspan="1">
			The element declaration resolved to by the value of
			the <att>element</att> <emph>attribute information item</emph> if present, otherwise the
			type definition resolved to by the value of the
			<att>type</att> <emph>attribute information item</emph> if present, otherwise a similar
			construct in some type system as referred to by some other <emph>attribute information item</emph>
			</td>
		  </tr>
		</tbody>
	  </table>

    </div3>
  </div2>



  <div2 id="PortType">
    <head>Port Type</head>
    <div3 id="PortType_details">
      <head>The Port Type Component</head>
      <p>
	  A port type component describes a set of messages that a service
	  sends and/or receives. It does this by grouping related messages
	  into operations. An operation is a set of input and
	  output messages, a port type is a set of operations.
	  </p>
	  <p>
	  A port type can optionally extend one or more other port
	  types. In such cases the port type contains the operations of
	  the port types it extends, along with any operations it defines.
	  </p>
	  <p>
	  Port types are named constructs and can be referred to by
	  QName (see <specref ref="qnameres"/>). For instance, binding components refer to port types in
	  this way.
	  </p>
	  <p>The properties of the Port Type Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
	    <item><p>{target namespace} A namespace name, as defined in
	    <bibref ref="XMLNS"/>.</p></item>
		<item><p>{extended port types} A set of named port type definitions.</p> </item>
  	    <item><p>{operations} A set of named port type operation definitions.</p></item>
	  </ulist>

	  <p>
	  For each port type component in the {port types} property of a
	  definitions container the combination of {name} and {target 
	  namespace} properties must be unique.
	  </p>
    </div3>

    <div3 id="PortType_XMLRep">
      <head>XML Representation of Port Type Component</head>
      <p>
	  The XML representation for a port type definition component is
	  an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>portType</el></p></item>
	    <item><p>A [namespace name] of <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Porttype_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  An optional <att>extends</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Porttype_extends_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s.
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item>
		  <p>Zero or more <emph>element information item</emph>s amongst its [children], as
		  follows;</p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>
		    <item>
			  <p>
			  Zero or more <el>operation</el> <emph>element information item</emph>s <specref ref="PortTypeOperation_XMLRep"/>.
			  </p>
			</item>
		  </ulist>
        </item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to port types described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
      </ulist>

      <div4 id="Porttype_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>portType</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> together with the
		<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el>
		<emph>element information item</emph> forms the QName of the port type.
		</p>
		<p>
		The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Porttype_extends_attribute">
        <head><att>extends</att> <emph>attribute information item</emph></head>
	    <p>
		The <att>extends</att> <emph>attribute information item</emph> lists the port types that this port
		type derives from.
		</p>
		<p>
		The <att>extends</att> <emph>attribute information item</emph> has the following Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>extends</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>extends</att> <emph>attribute information item</emph> is a list of <emph>xs:QName</emph>.
		</p>
      </div4>
    </div3>

    <div3 id="PortType_Mapping">
	  <head>Mapping Port Type's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Port Type Component (see
	  <specref ref="PortType_details"/>) and the XML Representation of
	  the <el>portType</el> <emph>element information item</emph> (see <specref ref="PortType_XMLRep"/>) is
	  as described in <specref ref="tab_PortType_Mapping"/>.
	  </p>

	  <table border="1" id="tab_PortType_Mapping">
	    <caption>Mapping between Port Type Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{target namespace}</td>
			<td rowspan="1" colspan="1">
			The actual value of the	<att>targetNamespace</att> <emph>attribute information item</emph>
			of the [parent] <el>definitions</el>	<emph>element information item</emph>
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{extended port types}</td>
			<td rowspan="1" colspan="1">
			The set of port type definitions resolved to by the values
			in the <att>extends</att> <emph>attribute information item</emph> if any, plus the set of
			port type definitions in the {extended port types} property of those
			port type definitions, otherwise empty.
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{operations}</td>
			<td rowspan="1" colspan="1">
			The set of port type operation definitions corresponding to the
			<el>operation</el> <emph>element information item</emph>s in [children], if any, plus the
			set of port type operation definitions in the {operations}
			property of the port type definitions in {extended port
			types}, if any. 
			</td>
          </tr>
		</tbody>
	  </table>

    </div3>
  </div2>



  <div2 id="PortTypeOperation">
    <head>Port Type Operation</head>
    <div3 id="PortTypeOperation_details">
      <head>The Port Type Operation Component</head>
      <p>
	  A port type operation component describes an operation that a
	  given port type supports. An operation is a set of message
	  references. Message references may be to messages this operation
	  accepts, that is input messages, or messages this operation
	  sends, that is output or fault messages. 
	  </p>
	  <p>Port type operation components are local to port type
	  components, they cannot be refered to by QName</p>
	  <p>The properties of the Port Type Operation Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
		<item><p>{message exchange pattern} One of Input-Only, Output-Only,
		Input-Output or Output-Input</p></item>
		<item><p>{messages} A set of message reference
		components</p></item>
	  </ulist>

	  <p>
	  For each port type operation component in the {operations} property of a
	  port type component the {name} property must be unique.
	  </p>
	  <p>In cases where, due to a port type extending one or more other port
	  types, two or more port type operation components have the same
	  value for their {name} property, then the component models of
	  those port type operation components MUST be equivalent (see <specref ref="compequiv"/>. If the port type operation components are equivalent then they
	  are considered to collapse into a component. It is an error if
	  two port type operation components have the same value for their
	  {name} property but are not equivalent.
	  </p>

	  <div4>
	    <head>Port Type Operation Message Exchange Patterns</head>
		<p>The following list defines the semantics of each of the
		possible values of the {message exchange pattern} property:</p>
		<ulist>
		  <item>
		    <p>{message exchange pattern} is Input-Output. The semantics are that when
		    the input message is sent to the service, one of the
		    following MUST happen: the output message is generated; or
		    one of the fault messages listed is generated instead. It
		    is an error for both an output message and a fault message
		    to be generated in response to the same input message.
			</p>
	      </item>

		  <item>
		    <p>{message exchange pattern} is Input-Only. The semantics are that when a
		    message is sent to the service, the service consumes it
		    but does not produce any output message. There MUST NOT be
		    any fault messages indicated in this case.
			</p>
		  </item>

		  <item>
		    <p>{message exchange pattern} is Output-Input. The semantics are that the
		    service will generate the output message and in return the
		    input message MUST be received or one of the fault
		    messages listed MUST be received. 
		    </p>
          </item>

		  <item>
		    <p>{message exchange pattern} is Output-Only. The semantics are that the
		    service will generate the output message but does not expect
		    to receive any response message or fault messages. There
		    MUST NOT be any fault messages indicated in this case.
            </p>
	      </item>
	    </ulist>

	  </div4>

    </div3>

    <div3 id="PortTypeOperation_XMLRep">
      <head>XML Representation of Port Type Operation Component</head>
      <p>
	  The XML representation for a port type operation component is an
	  <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>operation</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Porttypeoperation_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s.
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item><p>One or more <emph>element information item</emph> amongst its [children] as follows:</p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>
		    <item><p>One of:</p>
			  <ulist>
			    <item><p>An <el>input</el> <emph>element information item</emph> followed by
			    an optional <el>output</el> <emph>element information item</emph> and zero
			    or more <el>fault</el> <emph>element information item</emph>s</p></item>
			    <item><p>An <el>output</el> <emph>element information item</emph> followed by
			    an optional <el>input</el> <emph>element information item</emph> and zero
			    or more <el>fault</el> <emph>element information item</emph>s</p></item>
			  </ulist>
			</item>
		  </ulist>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to port type operations described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
      </ulist>

      <div4 id="Porttypeoperation_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>operation</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> identifies a given <el>operation</el>
		<emph>element information item</emph> inside a given <el>portType</el> <emph>element information item</emph>.
		</p>
		<p>
		The <att>name</att> <emph>attribute information item</emph> has the following
		Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

    </div3>

    <div3 id="PortTypeOperation_Mapping">
	  <head>Mapping Port Type Operation's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Port Type Operation Component (see
	  <specref ref="PortTypeOperation_details"/>) and the XML Representation of
	  the <el>portType</el> <emph>element information item</emph> (see <specref ref="PortTypeOperation_XMLRep"/>) is
	  as described in <specref ref="tab_PortTypeOperation_Mapping"/>.
	  </p>

	  <table border="1" id="tab_PortTypeOperation_Mapping">
	    <caption>Mapping between Port Type Operation Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{message exchange pattern}</td>
			<td rowspan="1" colspan="1">If [children] contains an <el>input</el> <emph>element information item</emph> and
			no <el>output</el> <emph>element information item</emph> then Input-Only, else if 
			[children] contains an <el>input</el> <emph>element information item</emph> followed by an
			<el>output</el> <emph>element information item</emph> then Input-Output, else if
			[children] contains an <el>output</el> <emph>element information item</emph> and no
			<el>input</el> <emph>element information item</emph> then Output-Only else if [children]
			contains an <el>output</el> <emph>element information item</emph> followed by an
			<el>input</el> <emph>element information item</emph> then Output-Input.
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{messages}</td>
			<td rowspan="1" colspan="1">
			The set of message references corresponding to the
			<el>input</el>, <el>output</el> and <el>fault</el> <emph>element information item</emph>s in [children], if any.
			</td>
          </tr>
		</tbody>
	  </table>

    </div3>
  </div2>



  <div2 id="MessageReference">
    <head>Message Reference</head>
    <div3 id="MessageReference_details">
      <head>The Message Reference Component</head>
      <p>
	  A message reference component refers to a named message that
	  forms part of an operation.
	  </p>
	  <p>Message reference components are local to a given port type
	  operation component, they cannot be refered to by QName</p>
	  <p>The properties of the Message Reference Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
		<item><p>{variety} One of input, output or fault.</p></item>
		<item><p>{message} A reference, by QName (see <specref ref="qnameres"/>), to a named message component.</p></item>
	  </ulist>

	  <p>
	  For each message reference component in the {messages} property of a
	  port type operation component the {name} property must be unique.
	  </p>
    </div3>

    <div3 id="MessageReference_XMLRep">
      <head>XML Representation of Message Reference Component</head>
      <p>
	  The XML representation for a message reference component is
	  an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>input</el>, <el>output</el> or <el>fault</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>Two or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="MessageReference_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  A <att>message</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="MessageReference_message_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item><p>Zero or more <emph>element information item</emph>s amongst its [children], in order,
		as follows;</p>
		<ulist>
		<item>
		  <p>
		  An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to input, output or fault children of port type operations described
		  in <specref ref="language-extensibility"/>.
		  </p>
		</item>
		</ulist>
		</item>
      </ulist>

      <div4 id="MessageReference_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>input</el>, <el>output</el> or <el>fault</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> identifies a given message reference
		<emph>element information item</emph>  within a given <el>operation</el> <emph>element information item</emph>.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following
		Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="MessageReference_message_attribute">
        <head><att>message</att> <emph>attribute information item</emph> with <el>input</el>, <el>output</el> or <el>fault</el> [owner]</head>
	    <p>
		The <att>message</att> <emph>attribute information item</emph> refers, by QName, to a message component.
		</p>
		<p>The <att>message</att> <emph>attribute information item</emph> has the following
		Infoset properties;
		</p>
		<ulist>
		  <item><p>A [local name] of <att>message</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>message</att> <emph>attribute information item</emph> is <emph>xs:QName</emph>.
		</p>
      </div4>
    </div3>

    <div3 id="MessageReference_Mapping">
	  <head>Mapping Message Reference's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Message Reference Component (see
	  <specref ref="MessageReference_details"/>) and the XML Representation of
	  the message reference <emph>element information item</emph> (see <specref ref="MessageReference_XMLRep"/>) is
	  as described in <specref ref="tab_MessageReference_Mapping"/>.
	  </p>

	  <table border="1" id="tab_MessageReference_Mapping">
	    <caption>Mapping between Message Reference Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph> if
			present, otherwise if {variety} is input or output and the {message exchange pattern}
			of the enclosing Port Type Operation component is
			Input-Only or Output-Only then the actual value of the
			<att>name</att> <emph>attribute information item</emph> on the enclosing <el>operation</el>
			<emph>element information item</emph>, otherwise if {variety} is input and the {message exchange pattern}
			of the enclosing Port Type Operation component is
			Input-Output then the actual value of the
			<att>name</att> <emph>attribute information item</emph> on the enclosing <el>operation</el>
			with 'Request' appended, otherwise if {variety} is output and the {message exchange pattern}
			of the enclosing Port Type Operation component is
			Input-Output or {variety} is input and the {message exchange pattern} of
			the enclosing Port Type Operation component is
			Output-Input then the actual value of the
			<att>name</att> <emph>attribute information item</emph> on the enclosing <el>operation</el>
			with 'Response' appended, otherwise if {variety} is output and the {message exchange pattern}
			of the enclosing Port Type Operation component is
			Output-Input then the actual value of the
			<att>name</att> <emph>attribute information item</emph> on the enclosing <el>operation</el>
			with 'Solicit' appended.
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{variety}</td>
			<td rowspan="1" colspan="1">If the [local name] of the <emph>element information item</emph> is <el>input</el>
			then input, else if the [local name] of the <emph>element information item</emph> is
			<el>output</el> then output, else if the [local name] of
			the <emph>element information item</emph> is <el>fault</el> then fault.
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{message}</td>
			<td rowspan="1" colspan="1">
			The message component resolved to by the value of
			the <att>message</att> <emph>attribute information item</emph>
			</td>
          </tr>
		</tbody>
	  </table>

    </div3>
  </div2>

  <div2 id="Binding">
    <head>Binding</head>

<ednote id="ednote-support-soap11-or-not">
  <name>Should WSDL 1.2 (part 2) including bindings for SOAP 1.1?</name>
  <date>June 25, 2002</date>
  <edtext>The WS Description WG currently investigating whether it
          will support SOAP 1.1 in this specification, as a W3C note,
          or otherwise. We will of course support SOAP 1.2.
  </edtext>
</ednote>

    <div3 id="Binding_details">
      <head>The Binding Component</head>
      <p>
	  A binding component described a concrete binding of a port type
	  component and associated operations to a particular concrete message
	  format and transmission protocol.
	  </p>
	  <p>
	  No concrete binding details are given in this specification. The
	  companion specification, <emph>WSDL (Version 1.2):
	  Bindings</emph> <bibref ref="WSDL-PART2"/> defines such bindings
	  for SOAP 1.1 <bibref ref="SOAP11"/>, SOAP 1.2 <bibref ref="SOAP12-PART1"/>, HTTP <bibref ref="RFC2616"/> and MIME
	  <bibref ref="RFC2045"/>. Other specifications MAY define
	  additional binding details. Such specifications are expected to
	  annotate the binding component ( and its sub-components ) with
	  additional properties and specify the mapping between those
	  properties and the XML representation.
	  </p>


	  <p>
	  Bindings are named constructs and can be referred to by
	  QName (see <specref ref="qnameres"/>). For instance, service components refer to bindings in
	  this way.
	  </p>
	  <p>The properties of the Binding Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
	    <item><p>{target namespace} A namespace name, as defined in <bibref ref="XMLNS"/>.</p></item> 
  	    <item><p>{port type} A named port type definition</p></item>
		<item><p>{operations} A set of named binding operation definitions</p></item>
	  </ulist>

	  <p>
	  For each binding component in the {bindings} property of a
	  definitions container the combination of {name} and {target 
	  namespace} properties must be unique.
	  </p>
    </div3>

    <div3 id="Binding_XMLRep">
      <head>XML Representation of Binding Component</head>
      <p>
	  The XML representation for a binding component
	  is an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>binding</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Binding_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item>
		  <p>Zero or more <emph>element information item</emph>s amongst its [children], as
		  follows;</p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>

		    <item>
		      <p>
		      Zero or more <el>operation</el> <emph>element information item</emph>s (see <specref ref="Binding_Operation_XMLRep"/>).
		      </p>
		    </item>
          </ulist>
        </item>
			<item>
		      <p>
		      Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		      a member of one of the element substitution groups related
		      to bindings described
		      in <specref ref="language-extensibility"/>. Such
		      <emph>element information item</emph>s are considered to be binding extension elements
		      (see <specref ref="Binding_extension_elements"/>).
		      </p>
		    </item>

      </ulist>

      <div4 id="Binding_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>binding</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> together with the
		<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el>
		<emph>element information item</emph> forms the QName of the binding.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Binding_type_attribute">
        <head><att>type</att> <emph>attribute information item</emph> with <el>binding</el> [owner]</head>
	    <p>
		The <att>type</att> <emph>attribute information item</emph> refers, by QName, to a port type component
		</p>
		<p>The <att>type</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>type</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>type</att> <emph>attribute information item</emph> is <emph>xs:QName</emph>.
		</p>
      </div4>

      <div4 id="Binding_extension_elements">
        <head>Binding extension elements</head>
		<p>
		Binding extension elements are used to provide information
		specific to a particular binding. The semantics of such
		<emph>element information item</emph>s are defined by the specification for those <emph>element information item</emph>s. Such specifications are expected to
	  annotate the binding component with
	  additional properties and specify the mapping between those
	  properties and the XML representation.
		</p>
      </div4>

    </div3>

    <div3 id="Binding_Mapping">
	  <head>Mapping Binding's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Binding Component (see
	  <specref ref="Binding_details"/>) and the XML Representation of
	  the <el>binding</el> <emph>element information item</emph> (see <specref ref="Binding_XMLRep"/>) is
	  as described in <specref ref="tab_Binding_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Binding_Mapping">
	    <caption>Mapping between Binding Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{target namespace}</td>
			<td rowspan="1" colspan="1">
			The actual value of the	<att>targetNamespace</att> <emph>attribute information item</emph>
			of the [parent] <el>definitions</el>	<emph>element information item</emph>
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{port type}</td>
			<td rowspan="1" colspan="1">
			The port type definition resolved to by the actual value
			of the <att>type</att> <emph>attribute information item</emph>.
			</td>
          </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{operations}</td>
			<td rowspan="1" colspan="1">The set of binding operation definitions corresponding
			to the <el>operation</el> <emph>element information item</emph>s in [children], if any.</td>
		  </tr>
		</tbody>
	  </table>

    </div3>
  </div2>




  <div2 id="Binding_Operation">
    <head>Binding Operation</head>

    <div3 id="Binding_Operation_details">
      <head>The Binding Operation Component</head>
      <p>
	  A binding operation component describes a concrete binding for a
	  particular operation of a port type to a particular concrete message
	  format.
	  </p>
	  <p>
	  Binding operation components are local to a given binding component
	  </p>
	  <p>The properties of the Binding Operation Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
		<item><p>{messages} A set of binding message reference components</p></item>
	  </ulist>

	  <p>
	  For each binding operation component in the {operations}
	  property of a binding component the {name} property must be unique.
	  </p>
    </div3>

    <div3 id="Binding_Operation_XMLRep">
      <head>XML Representation of Binding Operation Component</head>
      <p>
	  The XML representation for a binding operation component
	  is an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>operation</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Binding_Operation_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item><p>Zero or more <emph>element information item</emph>s amongst its [children], in order,
		as follows;</p>
		<ulist>
		  <item>
	        <p>
	        An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
	        </p>
          </item>
		  <item><p>One of;</p>
			<ulist>
			  <item><p>An <el>input</el> <emph>element information item</emph> followed by
			  an optional <el>output</el> <emph>element information item</emph></p></item>
			  <item><p>An <el>output</el> <emph>element information item</emph> followed by
			  an optional <el>input</el> <emph>element information item</emph></p></item>
			</ulist>
		  </item>
		  <item><p>Zero or more <el>fault</el> <emph>element information item</emph>s</p></item>
        </ulist>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to binding operations described
		  in <specref ref="language-extensibility"/>. Such <emph>element information item</emph>s
		  are considered to be binding operation extension elements as
		    described below (see <specref ref="Binding_Operation_extension_elements"/>).
		    </p>
		  </item>			
      </ulist>

      <div4 id="Binding_Operation_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>operation</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> identified a given
		<el>operation</el> <emph>element information item</emph> within a given <el>binding</el> <emph>element information item</emph>.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Binding_Operation_extension_elements">
        <head>Binding operation extension elements</head>
		<p>
		Binding operation extension elements are used to provide information
		specific to a particular operation in a binding. The semantics of such
		<emph>element information item</emph>s are defined by the specification for those <emph>element information item</emph>s. Such specifications are expected to
	  annotate the binding operation component with
	  additional properties and specify the mapping between those
	  properties and the XML representation.
		</p>
      </div4>

    </div3>

    <div3 id="Binding_Operation_Mapping">
	  <head>Mapping Binding Operation's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Binding Operation Component (see
	  <specref ref="Binding_Operation_details"/>) and the XML Representation of
	  the <el>binding</el> <emph>element information item</emph> (see <specref ref="Binding_Operation_XMLRep"/>) is
	  as described in <specref ref="tab_Binding_Operation_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Binding_Operation_Mapping">
	    <caption>Mapping between Binding Operation Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{messages}</td>
			<td rowspan="1" colspan="1">The set of binding message reference components corresponding
			to the <el>input</el>, <el>output</el> and <el>fault</el> <emph>element information item</emph>s in [children], if any.</td>
		  </tr>
		</tbody>
	  </table>

    </div3>
  </div2>



  <div2 id="Binding_Message_Reference">
    <head>Binding Message Reference</head>

    <div3 id="Binding_Message_Reference_details">
      <head>The Binding Message Reference Component</head>
      <p>
	  A binding message reference component describes a concrete binding for a
	  particular message in an operation to a particular concrete message
	  format.
	  </p>
	  <p>
	  Binding message reference components are local to a given
	  binding operation component, they cannot be referred to by QName.
	  </p>
	  <p>The properties of the Binding Message Reference Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
		<item><p>{variety} One of input, output or fault</p></item>
	  </ulist>

	  <p>
	  For each binding message reference component in the {messages}
	  property of a binding operation component the {name} property must be unique.
	  </p>
    </div3>

    <div3 id="Binding_Message_Reference_XMLRep">
      <head>XML Representation of Binding Message Reference Component</head>
      <p>
	  The XML representation for a binding message reference component
	  is an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>input</el>, <el>output</el> or <el>fault</el>.</p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>Zero or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  An optional <att>name</att> <emph>attribute information item</emph> as described below in <specref ref="Binding_Message_Reference_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item><p>Zero or more <emph>element information item</emph>s amongst its [children], in order,
		as follows;</p>
		<ulist>
		  <item>
	        <p>
	        An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
	        </p>
          </item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>element information item</emph>s. Such <emph>element information item</emph>s MUST be
		  a member of one of the element substitution groups related
		  to input, output or fault children of binding operations described
		  in <specref ref="language-extensibility"/>. Such <emph>element information item</emph>s are
		  considered to be binding message reference extension
		  elements, as described below (see <specref ref="Binding_Message_Reference_extension_elements"/>).
		  </p>
		</item>
        </ulist>
		</item>
      </ulist>

      <div4 id="Binding_Message_Reference_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>input</el>, <el>output</el> or <el>fault</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> identifies a given binding message
		reference <emph>element information item</emph> within a given <el>operation</el> <emph>element information item</emph>.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Binding_Message_Reference_extension_elements">
        <head>Binding message reference extension elements</head>
		<p>
		Binding message reference extension elements are used to provide information
		specific to a particular message in an operation. The semantics of such
		<emph>element information item</emph>s are defined by the specification for those
		<emph>element information item</emph>s. Such specifications are expected to
	  annotate the binding message reference component with
	  additional properties and specify the mapping between those
	  properties and the XML representation.
		</p>
      </div4>

    </div3>

    <div3 id="Binding_Message_Reference_Mapping">
	  <head>Mapping Binding Message Reference's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Binding Message Reference Component (see
	  <specref ref="Binding_Message_Reference_details"/>) and the XML Representation of
	  the <el>binding</el> <emph>element information item</emph> (see <specref ref="Binding_Message_Reference_XMLRep"/>) is
	  as described in <specref ref="tab_Binding_Message_Reference_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Binding_Message_Reference_Mapping">
	    <caption>Mapping between Binding Message Reference Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph> if
			present, otherwise the actual value of the <att>name</att>
			<emph>attribute information item</emph> on the <emph>element information item</emph> with the same [local name] whose
			[parent] <el>operation</el> <emph>element information item</emph> has the same value for
			its <att>name</att> <emph>attribute information item</emph> as the <el>operation</el>
			<emph>element information item</emph> in the <el>binding</el> <emph>element information item</emph> but is rather in the <el>portType</el>
			<emph>element information item</emph> referred to by the <att>type</att> <emph>attribute information item</emph>.</td>
		  </tr>
  		  <tr>
		    <td rowspan="1" colspan="1">{variety}</td>
			<td rowspan="1" colspan="1">If the [local name] of the <emph>element information item</emph> is <el>input</el>
			then input, else if the [local name] of the <emph>element information item</emph> is
			<el>output</el> then output, else if the [local name] of
			the <emph>element information item</emph> is <el>fault</el> then fault.
			</td>
		  </tr>
		</tbody>
	  </table>

    </div3>
  </div2>





  <div2 id="Service">
    <head>Service</head>

    <div3 id="Service_details">
      <head>The Service Component</head>
      <p>
	  A service component describes the set of port types that a
	  service provides and the ports they are provided over.</p>
	  <p>
	  Service are named constructs and can be referred to by
	  QName (see <specref ref="qnameres"/>).
	  </p>
	  <p>The properties of the Service Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
	    <item><p>{target namespace} A namespace name, as defined in
	    <bibref ref="XMLNS"/>.</p></item>
		<item><p>{port types} A set of port type
		components</p></item>		
  	    <item><p>{ports} A set of port components</p></item>
	  </ulist>

	  <p>
	  For each service component in the {services} property of a
	  definitions container the combination of {name} and {target 
	  namespace} properties must be unique.
	  </p>
    </div3>

    <div3 id="Service_XMLRep">
      <head>XML Representation of Service Component</head>
      <p>
	  The XML representation for a service definition component
	  is an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>service</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>One or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Service_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item>
		  <p>One or more <emph>element information item</emph> amongst its [children], as
		  follows;</p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>
		    <item>
			<p>One or more <el>port</el> <emph>element information item</emph>s (see <specref ref="Port_XMLRep"/></p>
		    </item>
          </ulist>
        </item>
			<item>
		      <p>
		      Zero or more namespace qualified <emph>element information item</emph>s amongst its [children]. Such <emph>element information item</emph>s MUST be
		      a member of one of the element substitution groups related
		      to services described
		      in <specref ref="language-extensibility"/>.
		      </p>
		    </item>
      </ulist>

      <div4 id="Service_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>service</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> together with the
		<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el>
		<emph>element information item</emph> forms the QName of the service.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

    </div3>

    <div3 id="Service_Mapping">
	  <head>Mapping Service's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Service Component (see
	  <specref ref="Service_details"/>) and the XML Representation of
	  the <el>service</el> <emph>element information item</emph> (see <specref ref="Service_XMLRep"/>) is
	  as described in <specref ref="tab_Service_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Service_Mapping">
	    <caption>Mapping between Service Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{target namespace}</td>
			<td rowspan="1" colspan="1">
			The actual value of the	<att>targetNamespace</att> <emph>attribute information item</emph>
			of the [parent] <el>definitions</el>	<emph>element information item</emph>
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{port type}</td>
			<td rowspan="1" colspan="1">
			The set of port type components resolved to by the actual value
			of the <att>portType</att> <emph>attribute information item</emph>s on the bindings resolved
			to by the <att>binding</att> <emph>attribute information item</emph>s on the <el>port</el>
			<emph>element information item</emph>s in [children], if any.
			</td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{ports}</td>
			<td rowspan="1" colspan="1">
			The port components corresponding to the <el>port</el>
			<emph>element information item</emph>s in [children] if any.
			</td>
          </tr>
		</tbody>
	  </table>

    </div3>
  </div2>


  <div2 id="Port">
    <head>Port</head>

    <div3 id="Port_details">
      <head>The Port Component</head>
      <p>
	  A port component defines the particulars of a specific end-point
	  at which a given service is available.
	  </p>
	  <p>
	  Port components are local to a given service component, they
	  cannot be referred to by QName
	  </p>
	  <p>The properties of the Port Component are as follows:</p>
	  <ulist>
	    <item><p>{name} An NCName as defined by <bibref ref="XMLNS"/>.</p></item>
		<item>
		 <p>{binding} A named binding component
		 </p>
		</item>
	  </ulist>

	  <p>
	  For each port component in the {ports} property of a
	  service component the {name} property must be unique.
	  </p>
    </div3>

    <div3 id="Port_XMLRep">
      <head>XML Representation of Port Component</head>
      <p>
	  The XML representation for a port definition component
	  is an <emph>element information item</emph> with the following Infoset properties;
	  </p>
	  <ulist>
	    <item><p>A [local name] of <el>port</el></p></item>
	    <item><p>A [namespace name] of
	    <attval>http://www.w3.org/2003/01/wsdl</attval></p></item>
		<item><p>Two or more <emph>attribute information item</emph>s amongst its [attributes] as
		follows;</p>
		<ulist>
		<item>
		  <p>
		  A <att>name</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Port_name_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  A <att>binding</att> <emph>attribute information item</emph> 
		  as described below in <specref ref="Port_binding_attribute"/>.
		  </p>
		</item>
		<item>
		  <p>
		  Zero or more namespace qualified <emph>attribute information item</emph>s. 
		  The [namespace name] of such
		  <emph>attribute information item</emph>s MUST NOT be <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
		</ulist>
		</item>
		<item>
		  <p>Zero or more <emph>element information item</emph> amongst its [children], as
		  follows;</p>
		  <ulist>
		    <item>
		      <p>
		      An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>).
		      </p>
		    </item>
			<item>
		      <p>
		      Zero or more namespace qualified <emph>element information item</emph>s. Such <emph>element information item</emph>s MUST be
		      a member of one of the element substitution groups related
		      to ports described
		      in <specref ref="language-extensibility"/>. Such
		      <emph>element information item</emph>s are considered to be port extension elements
		      (see <specref ref="Port_extension_elements"/>).
		      </p>
		    </item>
          </ulist>
        </item>
      </ulist>

      <div4 id="Port_name_attribute">
        <head><att>name</att> <emph>attribute information item</emph> with <el>port</el> [owner]</head>
	    <p>
		The <att>name</att> <emph>attribute information item</emph> together with the
		<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el>
		<emph>element information item</emph> forms the QName of the port.
		</p>
		<p>The <att>name</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>name</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>name</att> <emph>attribute information item</emph> is <emph>xs:NCName</emph>.
		</p>
      </div4>

      <div4 id="Port_binding_attribute">
        <head><att>binding</att> <emph>attribute information item</emph> with <el>port</el> [owner]</head>
	    <p>
		The <att>binding</att> <emph>attribute information item</emph> refers, by QName, to a binding component
		</p>
		<p>The <att>binding</att> <emph>attribute information item</emph> has the following Infoset properties;</p>
		<ulist>
		  <item><p>A [local name] of <att>binding</att></p></item>
		  <item><p>A [namespace name] which has no value</p></item>
		</ulist>
		<p>
		The type of the <att>binding</att> <emph>attribute information item</emph> is <emph>xs:QName</emph>.
		</p>
      </div4>

      <div4 id="Port_extension_elements">
        <head>Port extension elements</head>
		<p>
		Port extension elements are used to provide information
		specific to a particular port in a server. The semantics of such
		<emph>element information item</emph>s are defined by the specification for those <emph>element information item</emph>s. Such specifications are expected to
	  annotate the port component with
	  additional properties and specify the mapping between those
	  properties and the XML representation.
		</p>
      </div4>
    </div3>

    <div3 id="Port_Mapping">
	  <head>Mapping Port's XML Representation to Component Properties</head>
	  <p>
	  The mapping between the properties of the Port Component (see
	  <specref ref="Port_details"/>) and the XML Representation of
	  the <el>port</el> <emph>element information item</emph> (see <specref ref="Port_XMLRep"/>) is
	  as described in <specref ref="tab_Port_Mapping"/>.
	  </p>

	  <table border="1" id="tab_Port_Mapping">
	    <caption>Mapping between Port Component Properties and XML Representation</caption>
	    <tbody>
		  <tr>
		    <th rowspan="1" colspan="1">Property</th>
		    <th rowspan="1" colspan="1">Mapping</th>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{name}</td>
			<td rowspan="1" colspan="1">The actual value of the <att>name</att> <emph>attribute information item</emph></td>
		  </tr>
		  <tr>
		    <td rowspan="1" colspan="1">{binding}</td>
			<td rowspan="1" colspan="1">
			The binding component resolved to by the actual value of
			the <att>binding</att> <emph>attribute information item</emph>
			</td>
		  </tr>
		</tbody>
	  </table>

    </div3>
  </div2>

  <div2 id="compequiv">
    <head>Equivalence of components</head>
	<p>
	Two components of the same type are considered equivalent if the
	values of the properties of one component are the same as the
	values of the properties in the second component.
	</p>
	<p>With respect to top-level
	components (messages, port types, bindings and services) this
	effectively translates to name-based equivalence given the
	constraints on names. That is, given two top-level components of
	the same type, if the {name} properties have the same value and
	the {target namespace} properties have the same values then the
	two components are in fact, the same component. 
	</p>
  </div2>
  
  <div2 id="symbolspaces">
    <head>Symbol Spaces</head>
	<p>
	This specification defines 4 symbol spaces, one for each top-level
	component type ( message, port type, binding and service ). Within
	a symbol space all names, that is the combination of
	{name} and {target namespace} properties, are unique. Between
	symbol spaces, the combination of these two properties need not be
	unique. Thus it is perfectly coherent to have, for example, a
	binding and a port type that have the same name.
	</p>
	<p>
	When XML Schema is being used as one of the type systems for a
	WSDL description, then 6 other symbol spaces also exist, one for
	each of global element declarations, global attribute
	declarations, named model groups, named attribute groups, type
	definitions and key constraints, as defined by <bibref ref="XMLSchemaP1"/>.
	Other type systems may define additional symbol spaces.
	</p>
  </div2>

  <div2 id="qnameres">
    <head>QName resolution</head>
    <p>
    In its serialized form WSDL makes significant use of references
    between components. Such references are made
    using the Qualified Name, or QName of the component being referred
    to. QNames are a tuple, consisting of two parts; a namespace name and a
    local name. For example, in the case of a port type component, the namespace
    name is represented by the {namespace name} property and the local
    name is represented by the {name} property. 
	</p>
	<p>
	QName references are
    resolved by looking in the appropriate property of the definitions
    component. For example, to resolve a QName of a port type ( as
    refered to by the <att>portType</att> <emph>attribute information item</emph> on a binding ), the
    {port types} property of the definitions component would be inspected.
    </p>
	<p>
	If the appropriate property of the definitions component does not
	contains a component with the required QName then the reference is
	a broken reference, it cannot be resolved.
	</p>
  </div2>


</div1>
<!-- ******************************************************************* -->


<div1 id="eii-types">
<head>Types</head>

  <p>
  At the abstract level, the Types Component is a container for imported and
  embedded schema components.  By design, WSDL supports any schema language
  for which the syntax and semantics of import or embed have been defined. 
  Support for the W3C XML Schema Description Language <bibref ref="XMLSchemaP1"/>,<bibref ref="XMLSchemaP2"/> is required of
  all processors.  Instances of WSDL may require support for an alternative
  schema language by using the standard <att>wsdl:required</att> <emph>attribute information item</emph>
  (any imported or embedded XML Schema <emph>element information item</emph>s may be
  regarded as having this <emph>attribute information item</emph> set).  Only the
  XML Schema  implementation is defined in this specification.
  </p>

  <p>
  The schemas defined or referenced in the Types Component provide the
  type system used for message parts.  Message parts indicate their
  structure and content by using the standard <emph>attribute information item</emph>s
  <att>type</att> and <att>element</att>, or for alternate schema languages in which
  these concepts do not map well, by defining alternative <emph>attribute information item</emph>
  extensions to the <el>part</el> <emph>element information item</emph>.
  </p>


<p>The <el>types</el> <emph>element information item</emph> encloses data type definitions
used to define messages and has the following Infoset properties;</p>

<ulist>
  <item><p>A [local name] of <el>types</el>.</p></item>

  <item><p>A [namespace name] of
	<attval>http://www.w3.org/2003/01/wsdl</attval>.</p></item>
  <item><p>Zero or more namespace qualified <emph>attribute information item</emph>s in its [attributes]
  property. The [namespace name] property of such <emph>attribute information item</emph>s MUST NOT be http://www.w3.org/2003/01/wsdl</p></item>

  <item><p>Zero or more <emph>element information item</emph>s amongst its [children] as follows;</p>
  <ulist>
  <item><p>An optional <el>documentation</el> <emph>element information item</emph> (see <specref ref="eii-documentation"/>) in its [children]
        property.</p></item>
  <item><p>Zero or more <emph>element information item</emph>s from among the following, in any
  order:</p>
    <ulist>
	  <item><p><el>xs:import</el> <emph>element information item</emph>s</p></item>
	  <item><p><el>xs:schema</el> <emph>element information item</emph>s</p></item>
	  <item><p>Other namespace qualified <emph>element information item</emph>s whose namespace is NOT http://www.w3.org/2003/01/wsdl</p></item>
	</ulist>
  </item>

  </ulist>
  </item>
</ulist>

<div2 id="xsd-types">
<head>Using W3C XML Schema Description Language</head>

<p>
XML Schema MAY be used as the schema language, via import or embedding.  Each
method defines a different <emph>element information item</emph>.  All processors MUST
support XML Schema type definitions.
</p>

<div3>
<head>Importing XML Schema</head>

<p>Importing an XML Schema uses the <el>xs:import</el> mechanism defined by XML
Schema<bibref ref="XMLSchemaP1"/>,<bibref ref="XMLSchemaP2"/>, with
its syntax and semantics, plus some restrictions.  A child <emph>element information item</emph>
of the <el>types</el> <emph>element information item</emph> is defined with the
Infoset properties as follows:</p>
<ulist>
<item>
<p>A [local name] of <attval>import</attval>.</p>
</item>
<item>
<p>A [namespace name] of
<attval>"http://www.w3.org/2001/XMLSchema"</attval>.</p>
</item>
<item>
<p>One or two <emph>attribute information item</emph>s as follows:</p>
<ulist>
<item><p>A <att>namespace</att> <emph>attribute information item</emph> as described below.</p></item>
<item><p>An optional <att>schemaLocation</att> <emph>attribute information item</emph> as described below.</p></item>
</ulist>
</item>
</ulist>
<div4>
<head><att>namespace</att> <emph>attribute information item</emph></head>
<p>The <att>namespace</att> <emph>attribute information item</emph> defines the namespace of the type
and element definitions imported from the referenced schema.  If the
referenced schema contains a <att>targetNamespace</att> <emph>attribute information item</emph> on
its <el>xs:schema</el> <emph>element information item</emph>, then these values of these two
<emph>attribute information item</emph>s MUST be identical.  If the schema does not have
a <att>targetNamespace</att> <emph>attribute information item</emph>, then the namespace specified by the
<att>namespace</att> <emph>attribute information item</emph> is applied to
all components of the schema as if it contained a corresponding
targetNamespace declaration.  The <att>namespace</att> <emph>attribute information item</emph>
has the following Infoset properties:</p>
<ulist>
<item><p>A [local name] of namespace</p></item>
<item><p>A [namespace name] which has no value.</p></item>
</ulist>

<p>The type of the <att>namespace</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div4>
<div4>
<head><att>schemaLocation</att> <emph>attribute information item</emph></head>

<p>The <att>schemaLocation</att> <emph>attribute information item</emph>, if present, provides a hint
to the processor as to where the schema may be located.  Caching and
cataloging technologies may provide better information than this hint.  The
<att>schemaLocation</att> <emph>attribute information item</emph> has the following infoset properties:</p>
<ulist>
<item><p>A [local name] of schemaLocation.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>schemaLocation</att> <emph>attribute information item</emph> is <emph>xs:anyURI.</emph></p>

</div4>
</div3>

<div3>
<head>Embedding XML Schema</head>

<p>Embedding an XML schema uses the existing top-level
<el>xs:schema</el> <emph>element information item</emph>.  
It may be viewed as simply cutting and pasting an
existing, stand-alone schema, to a location inside the Types Component.  The
<el>xs:schema</el> <emph>element information item</emph> has the following Infoset properties:</p>
<ulist>
<item><p>A [local name] of schema.</p></item>
<item><p>A [namespace name] of <attval>"http://www.w3.org/2001/XMLSchema".</attval></p></item>
<item><p>A <att>targetNamespace</att> <emph>attribute information item</emph>, amongst its [attributes] as described below.</p></item>
<item><p>Additional <emph>attribute information item</emph>s as specified for the <el>xs:schema</el>
<emph>element information item</emph> in the XML Schema specification.</p></item>
<item><p>Child <emph>element information item</emph>s as specified for the <el>xs:schema</el> <emph>element information item</emph>
in the XML Schema specification.</p></item>
</ulist>
<div4>
<head><att>targetNamespace</att> <emph>attribute information item</emph></head>
<p>The <att>targetNamespace</att> <emph>attribute information item</emph> defines the namespace of the
type and element definitions embedded in this schema.  WSDL modifies the
XML Schema definition of the <el>xs:schema</el> <emph>element information item</emph> to make this
<emph>attribute information item</emph> required.  The <att>targetNamespace</att> <emph>attribute information item</emph>
has the following infoset properties:</p>
<ulist>
<item><p>A [local name] of targetNamespace.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>targetNamespace</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div4>
</div3>
<div3>
<head>References to Type and Element Definitions</head>
<p>Whether embedded or imported, the type and element definitions present in a
schema may be referenced from a message part.</p>

<p>A named, global <el>xs:simpleType</el> or <el>xs:complexType</el> definition may be
referenced from the <el>part</el> <emph>element information item</emph> using the <att>type</att> <emph>attribute information item</emph>.  The QName is constructed from the <att>targetNamespace</att> of the
schema and the content of the <att>name</att> <emph>attribute information item</emph> of the <el>simpleType</el> or
<el>complexType</el> <emph>element information item</emph>.  A <att>type</att> <emph>attribute information item</emph> may
not be used to refer to an <el>xs:element</el> <emph>element information item</emph>.</p>
<p>
A named, global <el>xs:element</el> definition may be referenced from the <el>part</el>
<emph>element information item</emph> using the <att>element</att> <emph>attribute information item</emph>.  The
QName is constructed from the <att>targetNamespace</att> of the schema and the content
of the <att>name</att> <emph>attribute information item</emph> of the <el>xs:element</el> <emph>element information item</emph>.  An <att>element</att>
<emph>attribute information item</emph> may not be used to refer to an <el>xs:simpleType</el> or
<el>xs:complexType</el> <emph>element information item</emph>.</p>
</div3>


</div2>

<div2 id="other-types">
<head>Using Other Schema Languages</head>

<p>Since it is unreasonable to expect that a single schema language can be used
to describe all possible message parts and their constraints, WSDL allows
alternate schema languages to be specified via extensibility elements.  An
extensibility <emph>element information item</emph> MAY appear under the <el>types</el> <emph>element information item</emph> to identify the schema language employed, and to locate the
schema instance defining the grammar for message parts.  Depending upon the
schema language used, an <emph>element information item</emph> MAY be defined to allow
embedding, if and only if the schema language can be expressed in XML.  A
specification of extension syntax for an alternative schema language MUST
include an <emph>element information item</emph> definition, intended for inclusion in
the Types Component, which references, names, and locates the schema
instance (an "import" <emph>element information item</emph>). See <specref ref="other-schemalang"/> for examples of using other schema languages.</p>

</div2>




</div1>

<div1 id="modularize">
<head>Modularizing WSDL descriptions</head>
<p>This specification provides two mechanisms, described in this
section, for modularizing WSDL descriptions. These mechanisms help to
make WSDL descriptions clearer by allowing separation of the various
components of a description. Such separation could be performed
according to the level of abstraction of a given set of components, or
according to the namespace affiliation required of a given set of
components or according to some other grouping such as application applicability.
</p>
<p>
Both mechanisms work at the level of WSDL components and NOT at the
level of XML Information Sets or XML 1.0 serializations.
</p>

<div2 id="includes">
<head>Including Descriptions</head>

<p>The WSDL <el>include</el> <emph>element information item</emph> allows for the separation of different
components of a service definition, from the same target namespace, into independent WSDL documents which can
be merged as needed.
</p>
<p>
The WSDL <el>include</el>
<emph>element information item</emph> is modeled after the XML Schema <el>include</el> <emph>element information item</emph> (see
<bibref ref="XMLSchemaP1"/>, section 4.2.3 "References to schema
components in the same namespace"). Specifically it can be used to
include components from WSDL descriptions that share a target namespace with the
including description. 
Components in included descriptions are
part of the component model of the including description. The included
components can be referenced by QName. Note that because all WSDL
descriptions have a target namespace, no-namespace includes (
sometimes known as chameleon includes ) never occur in WSDL.</p>

<p>The <el>include</el> <emph>element information item</emph> has:</p>
<ulist>
  <item><p>A [local name] of <el>include</el>.</p></item>
  <item><p>A [namespace name] of
     <attval>http://www.w3.org/2003/01/wsdl</attval>.</p></item>
  <item><p>An <emph>attribute information item</emph> which has:
    <ulist>
      <item><p>A [local name] of <att>location</att>.</p></item>
      <item><p>A [namespace name] which has no value.</p></item>
    </ulist>
    A <att>location</att> <emph>attribute information item</emph> is of type <att>xs:anyURI</att>.
    Its actual value is the location of some information for the namespace
    identified by the <att>targetNamespace</att> <emph>attribute information item</emph> of the
    containing <el>definitions</el> <emph>element information item</emph>.</p>
	<p>
	The actual value of the <att>targetNamespace</att> <emph>attribute information item</emph> of the
	included WSDL document MUST match the actual value of the
	<att>targetNamespace</att> <emph>attribute information item</emph> of the <el>definitions</el> <emph>element information item</emph>
	which is the [parent] of the <el>include</el> <emph>element information item</emph>.
	</p>
	</item>
</ulist>
</div2>

<div2 id="imports">
<head>Importing Descriptions</head>

<p>The WSDL <el>import</el> <emph>element information item</emph>, like the <el>include</el> <emph>element information item</emph>
(see <specref ref="includes"/>) also allows for the separation of the
different components of a WSDL description into independent
descriptions, but in this case with different target namespaces, which
can be imported as needed. This technique helps writing clearer WSDL
descriptions, by separation the definitions according to their level
of abstraction, and maximizes reusability.</p> 

<p>The WSDL <el>import</el> <emph>element information item</emph> is modeled after the XML Schema
<el>import</el> <emph>element information item</emph> (see <bibref ref="XMLSchemaP1"/>, section 4.2.3
"References to schema components across namespaces"). Specifically it
can be used to import components from WSDL descriptions that do not
share a target namespace with the importing document. Components in
imported descriptions are part of the component model of the importing
description. The imported components can be referenced by QName. Using
the <el>import</el> construct is a necessary condition for making
components from another namespace available to a WSDL
description. That is, a WSDL description cannot refer to components in
a namespace other that the target namespace unless an import statement
for that namespace is present.</p>

<p>The <el>import</el> <emph>element information item</emph> has:</p>
  <ulist>
    <item>
	  <p>A [local name] of <el>import</el>.</p>
	</item>
    <item>
      <p>A [namespace name] of <attval>http://www.w3.org/2003/01/wsdl</attval>.</p>
    </item> 
    <item>
      <p>An <emph>attribute information item</emph> which has:</p>
      <ulist>
        <item>
          <p>A [local name] of <att>namespace</att>.</p>
        </item>
        <item>
          <p>A [namespace name] which has no value.</p>
        </item>
      </ulist>
	  <p>The <att>namespace</att> <emph>attribute information item</emph> is of type
	  <att>xs:anyURI</att>. Its actual value indicates that the
	  containing WSDL document can contain qualified references to
	  WSDL definitions in that namespace (via one or more prefixes
	  declared with namespace declarations in the normal way). This
	  value MUST NOT match the actual value of the enclosing WSDL
	  document <att>targetNamespace</att> <emph>attribute information item</emph>. If the import
	  statement results in the import of a WSDL document then the
	  actual value of the <att>namespace</att> <emph>attribute information item</emph> MUST be identical
	  to the actual value of the imported WSDL document's
	  <att>targetNamespace</att> <emph>attribute information item</emph>.</p>
    </item>
    <item>
	  <p>An OPTIONAL <emph>attribute information item</emph> which has:</p>
      <ulist>
        <item>
          <p>A [local name] of <att>location</att>.</p>
        </item>
        <item>
          <p>A [namespace name] which has no value.</p>
        </item>
      </ulist>
      <p>The <att>location</att> <emph>attribute information item</emph> is of type
      <att>xs:anyURI</att>. Its actual value is the location of some
      information for the namespace identified by the
      <att>namespace</att> <emph>attribute information item</emph>.</p>

	  <p>The <att>location</att> <emph>attribute information item</emph> is optional to allow WSDL
	  components	to be constructed from information other than
	  serialized XML 1.0 and to allow for WSDL processors that have a
	  priori knowledge of certain namespaces.</p>
	</item>
  </ulist>
</div2>
</div1>

<!-- ******************************************************************* -->

<div1 id="eii-documentation">
  <head>Documentation</head>

  <p>
  WSDL uses the optional <el>documentation</el> <emph>element information item</emph> as a container
  for human readable documentation. The content of the <emph>element information item</emph> is
  arbitrary <emph>character information items</emph> and <emph>element information item</emph>s ("mixed" in XML Schema<bibref ref="XMLSchemaP1"/>). The <el>documentation</el> <emph>element information item</emph> is allowed
  inside any WSDL <emph>element information item</emph>.
  </p>

  <p>
  The <el>documentation</el> <emph>element information item</emph> has:
  </p>

  <ulist>
    <item>
	  <p>
	  A [local name] of <el>documentation</el>.
	  </p>
	</item>
	<item>
	  <p>
	  A [namespace name] of <attval>http://www.w3.org/2003/01/wsdl</attval>.
	  </p>
	</item>
    <item>
	  <p>
	  Zero or more <emph>attribute information item</emph>s in its [attributes] property.
	  </p>
	</item>
	<item>
	  <p>
	  Zero or more child <emph>element information item</emph>s in its [children] property.
	  </p>
	</item>
    <item>
	  <p>
	  Zero or more <emph>character information item</emph>s in  its
	  [children] property.
	  </p>
	</item>
  </ulist>

</div1>

<!-- ******************************************************************* -->

<div1 id="language-extensibility">
  <head>Language Extensibility</head>
  <p>
  The schema for WSDL has two extensibility models, one based on element
  substitution groups and another based on qualified attributes.
  </p> 

  <div2 id="eii-extensbility">
    <head>Element based extensibility</head>

    <p>
	WSDL allows extensions to be defined in terms of <emph>element information item</emph>s. Several
	abstract global element declarations serve as the heads of
	substitution groups. Some are specific to a particular point in
	the schema while others appear in multiple places. This allows
	extension to be specific to a particular point of the
	WSDL schema or more general. <specref ref="tabelemsubgroup"/>
	shows the complete list of element substitution groups that along with
	their allowed locations.
	</p>
	<p>
	It is expected that extensions will want to add to the
	existing properties of components in the component model. The
	specification for an extension <emph>element information item</emph> should include definitions
	of any such properties and the mapping between the XML
	representation of the extension and the properties in the
	component model.
	</p>



	<p>
	The WSDL schema also defines a base type for use by extensibility
	elements. <specref ref="exttype"/> shows the type definition. The
	use of this type as a base type is optional. The element
	declarations which serve as the heads of the defined substitution
	groups are all of type <attval>xs:anyType</attval>.
	</p>
	
	<p>
	Extensibility elements are commonly used to specify some
	technology specific binding. They allow innovation in the area of
	network and message protocols without having to revise the base
	WSDL specification. WSDL recommends that specifications defining
	such protocols also define any necessary WSDL extensions used to
	describe those protocols or formats.
	</p>

	<p>
	An extension element is said to be <emph>processed</emph> if a
	WSDL processor decides (through whatever means) that its parent
	(an <emph>element information item</emph> in the <attval>http://www.w3.org/2003/01/wsdl</attval> namespace) will be
	processed. Note that it is possible for WSDL processors to process
	only a subset of a given WSDL document. For instance, a tool may
	wish to focus on portTypes and operations only, and will
	consequently skip bindings.
	</p>

	<p>
	<table border="1" summary="List of element substitution group based            extensibility points" id="tabelemsubgroup">
    <caption>Element substitution groups defined for element based extensibility</caption>
      <tbody>
        <tr>
          <th rowspan="1" colspan="1">Element name</th> 
          <th rowspan="1" colspan="1">Allowed in [children] property of</th>
          <th rowspan="1" colspan="1">Notes</th>
        </tr>

        <tr>
          <td rowspan="1" colspan="1">globalExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:definitions</el> after <el>wsdl:import</el>,
				<el>wsdl:include</el> and <el>wsdl:types</el> <emph>element information item</emph>s
				if present.
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:message</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:part</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:portType</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:operation</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:input</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:output</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:fault</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:binding</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:service</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:port</el>
				</p> 
			  </item>
			</ulist>
          </td>
		  <td rowspan="1" colspan="1">This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear as a child of
		  any <emph>element information item</emph> in the <attval>http://www.w3.org/2003/01/wsdl</attval> namespace with
		  the exception of <el>wsdl:import</el>, <el>wsdl:include</el>
		  and <el>wsdl:types</el>.</td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">msgAndportTypeExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:portType</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as a child of
		  <el>wsdl:message</el> and/or <el>wsdl:portType</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">msgportTypeAndBindingExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:portType</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:binding</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as a child of
		  <el>wsdl:message</el>, <el>wsdl:portType</el> and/or <el>wsdl:binding</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">msgportTypeBindingServiceExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:portType</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:binding</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:service</el>
				</p> 
			  </item>
            </ulist>
		  </td>
          <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as a child of
		  <el>wsdl:message</el>, <el>wsdl:portType</el>, <el>wsdl:binding</el> and/or
		  <el>wsdl:service</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">bindingAndServiceExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:binding</el>
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:service</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as a child of
		  <el>wsdl:binding</el> and/or <el>wsdl:service</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">preImportInclude</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:definitions</el> before <el>wsdl:import</el>
				and <el>wsdl:include</el>, if present.
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear before the
		  <el>wsdl:import</el> and <el>wsdl:include</el> <emph>element information item</emph>s
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">inImportInclude</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:definitions</el> before, between or after
				<el>wsdl:import</el> and <el>wsdl:include</el>, if
				present. 
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear interleaved
		  with the <el>wsdl:import</el> and <el>wsdl:include</el>
		  <emph>element information item</emph>s
		  </td>
        </tr>

		<tr>
		  <td rowspan="1" colspan="1">preTypes</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:definitions</el> after
				<el>wsdl:import</el> and <el>wsdl:include</el> and
				before <el>wsdl:types</el>, if
				present. 
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear after the
		  <el>wsdl:import</el> and <el>wsdl:include</el> <emph>element information item</emph>s but
		  before the <el>wsdl:types</el> <emph>element information item</emph>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">postTypes</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:definitions</el> after
				<el>wsdl:types</el>, if
				present. 
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear after the
		  <el>wsdl:types</el> <emph>element information item</emph> ( potentially interleaved with
		  <el>wsdl:message</el>, <el>wsdl:portType</el>,
		  <el>wsdl:/binding</el> and <el>wsdl:service</el> <emph>element information item</emph>s.
		  </td>
        </tr>

		<tr>
		  <td colspan="3" rowspan="1">Abstract elements related to message</td>
        </tr>
		<tr>
		  <td rowspan="1" colspan="1">msgExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear as children
		  of <el>wsdl:message</el>
		  </td>
		</tr>
		
		<tr>
		  <td rowspan="1" colspan="1">msgPrePartExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el> before <el>wsdl:part</el>
				<emph>element information item</emph>s, if present.
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear as children
		  of <el>wsdl:message</el> before <el>wsdl:part</el>
		  </td>
		</tr>

        <tr>
		  <td rowspan="1" colspan="1">msgPostPartExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:message</el> after <el>wsdl:part</el>
				<emph>element information item</emph>s, if present.
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:message</el> after <el>wsdl:part</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">msgPartExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:part</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:message/wsdl:part</el>
		  </td>
		</tr>

		<tr>
		  <td colspan="3" rowspan="1">Abstract elements related to portType</td>
		</tr>
		
		<tr>
		  <td rowspan="1" colspan="1">portTypeExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:portType</el>
				</p> 
			  </item>
            </ulist>
		  </td>		  
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:portType</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">portTypePreOpExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:portType</el> before <el>wsdl:operation</el>
				<emph>element information item</emph>s, if present.
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear as children
		  of <el>wsdl:portType</el> before <el>wsdl:operation</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">portTypePostOpExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:portType</el> after <el>wsdl:operation</el>
				<emph>element information item</emph>s, if present.
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group
		  for extensibility elements that wish to appear as children
		  of <el>wsdl:portType</el> after <el>wsdl:operation</el>
		  </td>
		</tr>
		
		<tr>
		  <td rowspan="1" colspan="1">portTypeOpExt</td>
  		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:operation</el> with <el>wsdl:portType</el> [parent]
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:operation</el> when it is a child of
		  <el>wsdl:portType</el> 
	      </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">portTypeOpMsgExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:input</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:portType</el> [parent]
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:output</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:portType</el> [parent]
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:input</el> or <el>wsdl:output</el> when they appear
		  as children of <el>wsdl:operation</el> which itself appears
		  as a child of <el>wsdl:portType</el>
		  </td>
		</tr>
		
		<tr>
		  <td rowspan="1" colspan="1">portTypeOpFaultExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:fault</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:portType</el> [parent]
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:fault</el> when it appears
		  as a child of <el>wsdl:operation</el> which itself appears
		  as a child of <el>wsdl:portType</el>
		  </td>
		</tr>

		<tr>
		  <td colspan="3" rowspan="1">Abstract elements related to bindings</td>
		</tr>

       <tr>
	     <td rowspan="1" colspan="1">bindingExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:binding</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		 <td rowspan="1" colspan="1">
		 This <emph>element information item</emph> serves as the head of a substitution group for
		 extensibility elements that wish to appear as children of
		 <el>wsdl:binding</el>
		 </td>
       </tr>

	   <tr>
	     <td rowspan="1" colspan="1">bindingPreOpExt</td>
  		 <td rowspan="1" colspan="1">
		   <ulist>
		     <item>
			   <p>
			   <el>wsdl:binding</el> before <el>wsdl:operation</el>
			   <emph>element information item</emph>s, if present.
			   </p> 
			 </item>
           </ulist>
		 </td>
		 <td rowspan="1" colspan="1">
		 This <emph>element information item</emph> serves as the head of a substitution group for
		 extensibility elements that wish to appear as children of
		 <el>wsdl:binding</el> before <el>wsdl:operation</el>
		 </td>
	   </tr>
	   
	   <tr>
	     <td rowspan="1" colspan="1">bindingPostOpExt</td>
  		 <td rowspan="1" colspan="1">
		   <ulist>
		     <item>
			   <p>
			   <el>wsdl:binding</el> after <el>wsdl:operation</el>
			   <emph>element information item</emph>s, if present.
			   </p> 
			 </item>
           </ulist>
		 </td>		 
		 <td rowspan="1" colspan="1">
		 This <emph>element information item</emph> serves as the head of a substitution group for
		 extensibility elements that wish to appear as children of
		 <el>wsdl:binding</el> after <el>wsdl:operation</el>
		 </td>
       </tr>

	   <tr>
	     <td rowspan="1" colspan="1">bindingOpExt</td>
	     <td rowspan="1" colspan="1">
		   <ulist>
		     <item>
			   <p>
			   <el>wsdl:operation</el> with <el>wsdl:binding</el> [parent]
			   </p> 
			 </item>
           </ulist>
		 </td>		 
		 <td rowspan="1" colspan="1">
		 This <emph>element information item</emph> serves as the head of a substitution group for
		 extensibility elements that wish to appear as children of
		 <el>wsdl:operation</el> appearing as children of
		 <el>wsdl:binding</el>
		 </td>
	   </tr>

	   <tr>
	     <td rowspan="1" colspan="1">bindingOpMsgExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:input</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:binding</el> [parent]
				</p> 
			  </item>
			  <item>
			    <p>
				<el>wsdl:output</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:binding</el> [parent]
				</p> 
			  </item>
            </ulist>
		  </td>
		 <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:input</el> or <el>wsdl:output</el> when they appear
		  as children of <el>wsdl:operation</el> which itself appears
		  as a child of <el>wsdl:binding</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">bindingOpFaultExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:fault</el> with <el>wsdl:operation</el>
				[parent] which itself has <el>wsdl:binding</el> [parent]
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:fault</el> when it appears
		  as a child of <el>wsdl:operation</el> which itself appears
		  as a child of <el>wsdl:binding</el>
		  </td>
		</tr>

		<tr>
		  <td colspan="3" rowspan="1">Abstract elements related to service</td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">serviceExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:service</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:service</el>
		  </td>
        </tr>

		<tr>
		  <td rowspan="1" colspan="1">servicePrePortExt</td>
  		 <td rowspan="1" colspan="1">
		   <ulist>
		     <item>
			   <p>
			   <el>wsdl:service</el> before <el>wsdl:port</el>
			   <emph>element information item</emph>s, if present.
			   </p> 
			 </item>
           </ulist>
		 </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:service</el> before <el>wsdl:port</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">servicePostPortExt</td>
  		 <td rowspan="1" colspan="1">
		   <ulist>
		     <item>
			   <p>
			   <el>wsdl:service</el> after <el>wsdl:port</el>
			   <emph>element information item</emph>s, if present.
			   </p> 
			 </item>
           </ulist>
		 </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:service</el> after <el>wsdl:port</el>
		  </td>
		</tr>

		<tr>
		  <td rowspan="1" colspan="1">portExt</td>
		  <td rowspan="1" colspan="1">
			<ulist>
			  <item>
			    <p>
				<el>wsdl:port</el>
				</p> 
			  </item>
            </ulist>
		  </td>
		  <td rowspan="1" colspan="1">
		  This <emph>element information item</emph> serves as the head of a substitution group for
		  extensibility elements that wish to appear as children of
		  <el>wsdl:port</el>
		  </td>
        </tr>
		
      </tbody>
    </table>

	<example id="exttype">
	  <head>Base type for extensibility elements</head>
	  <eg xml:space="preserve">
&lt;xs:complexType name='ExtensibilityElement' abstract='true' &gt;
  &lt;xs:attribute ref='wsdl:required' use='optional' /&gt;
&lt;/xs:complexType&gt;
	  
	  </eg>
	</example>

	</p>


	<div3 id="mandatoryext">
	  <head>Mandatory extensions</head>
	  <p>
	  Extension elements can be marked as mandatory by annotating them
	  with a <att>wsdl:required</att> <emph>attribute information item</emph> (see <specref ref="required-aii"/>) with a value of <attval>true</attval>.
	  Mandatory extensions are those that MUST be
	  processed correctly by the WSDL processor.
	  If a mandatory extension element is processed, the WSDL
	  processor MUST either agree to fully abide by all the rules and
	  semantics signaled by the extension element's qualified name, or
	  immediate cease processing (fault). In particular, if the WSDL
	  processor does not recognize the qualified name of the extension
	  element, it MUST fault. If the WSDL processor recognizes the
	  qualified name, and determines that the extension in question is
	  incompatible with any other aspect of the document (including
	  other required extensions), it MUST fault.
	  </p>
	
	</div3>

	<div3 id="required-aii">
	  <head><att>required</att> <emph>attribute information item</emph></head>

	  <p>
	  WSDL provides a global <emph>attribute information item</emph> with the following Infoset
	  properties:</p>
      <ulist>
	    <item>
		  <p>
		  A [local name] of <att>required</att>.
		  </p>
		</item>
	    <item>
		  <p>
		  A [namespace name] of <attval>http://www.w3.org/2003/01/wsdl</attval>.
		  </p>
		</item>
	    <item>
		  <p>
		  A [specified] property with a value of <attval>true</attval>.
		  </p>
		</item>
	  </ulist>
	
	  <p>
	  The type of the <att>required</att> is <emph>xs:boolean</emph>.
	  </p>
    </div3>



  </div2>

  <div2 id="aii-extensbility">
    <head>Attribute based extensibility</head>
	<p>
	WSDL allows qualified <emph>attribute information item</emph>s whose [namespace name] is NOT
	<attval>http://www.w3.org/2003/01/wsdl</attval> to appear on any <emph>element information item</emph> whose
	namespace name IS <attval>http://www.w3.org/2003/01/wsdl</attval>. Such <emph>attribute information item</emph>ss can
	be used to annotate WSDL constructs such as messages, port types etc.
	</p>
	<p>
	WSDL does not provide a mechanism for marking extension
	<emph>attribute information item</emph>s as mandatory.
	</p>
  </div2>

</div1>

<!-- ******************************************************************* -->

<div1>
<head>References</head>
    <div2 id="Normative-References">
	<head>Normative References</head>

        <blist>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="RFC2119" key="IETF RFC 2119" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.ietf.org/rfc/rfc2119.txt">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Key words for use in RFCs to Indicate Requirement
	    Levels</titleref>, S. Bradner, Author. Internet Engineering
	    Task Force, June 1999. Available at
	    http://www.ietf.org/rfc/rfc2119.txt.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="RFC2396" key="IETF RFC 2396" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.ietf.org/rfc/rfc2396.txt">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Uniform Resource Identifiers (URI): Generic
	    Syntax</titleref>, T. Berners-Lee, R. Fielding, L. Masinter,
	    Authors. Internet Engineering Task Force, August
	    1998. Available at http://www.ietf.org/rfc/rfc2396.txt.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="XML" key="XML 1.0" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2000/REC-xml-20001006">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Extensible Markup Language (XML) 1.0 (Second
	    Edition)</titleref>, T. Bray, J. Paoli,
	    C. M. Sperberg-McQueen, and E. Maler, Editors. World Wide
	    Web Consortium, 10 February 1998, revised 6 October
	    2000. This version of the XML 1.0 Recommendation is
	    http://www.w3.org/TR/2000/REC-xml-20001006. The <loc href="http://www.w3.org/TR/REC-xml" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of XML
	    1.0</loc> is available at http://www.w3.org/TR/REC-xml.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="XMLInfoSet" key="XML Information Set" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2001/REC-xml-infoset-20011024">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">XML Information Set</titleref>, J. Cowan and R.
	    Tobin, Editors. World Wide Web Consortium, 24 October 2001.
	    This version of the XML Information Set Recommendation is
	    http://www.w3.org/TR/2001/REC-xml-infoset-20011024. The <loc href="http://www.w3.org/TR/xml-infoset" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	      XML Information Set</loc> is available at
	    http://www.w3.org/TR/xml-infoset.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="XMLNS" key="XML Namespaces" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/1999/REC-xml-names-19990114">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Namespaces in XML</titleref>, T. Bray, D.
	    Hollander, and A. Layman, Editors. World Wide Web
	    Consortium, 14 January 1999. This version of the XML
	    Information Set Recommendation is
	    http://www.w3.org/TR/1999/REC-xml-names-19990114. The <loc href="http://www.w3.org/TR/REC-xml-names" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	    Namespaces in XML</loc> is available at
	    http://www.w3.org/TR/REC-xml-names.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="XMLSchemaP1" key="XML Schema: Structures" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/">	    
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">XML Schema Part 1: Structures</titleref>,
	    H. Thompson, D. Beech, M. Maloney, and N. Mendelsohn,
	    Editors. World Wide Web Consortium, 2 May 2001. This version
	    of the XML Schema Part 1 Recommendation is
	    http://www.w3.org/TR/2001/REC-xmlschema-1-20010502. The <loc href="http://www.w3.org/TR/xmlschema-1/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	    XML Schema Part 1</loc> is available at
	    http://www.w3.org/TR/xmlschema-1.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="XML Schema: Datatypes" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" id="XMLSchemaP2" href="http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">XML Schema Part 2: Datatypes</titleref>, P. Byron
	    and A. Malhotra, Editors. World Wide Web Consortium, 2
	    May 2001.  This version of the XML Schema Part 2 Recommendation is
	    http://www.w3.org/TR/2001/REC-xmlschema-2-20010502. The <loc href="http://www.w3.org/TR/xmlschema-2/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	    XML Schema Part 2</loc> is available at
	    http://www.w3.org/TR/xmlschema-2.
	  </bibl>

	<bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="RFC 3023" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.ietf.org/rfc/rfc3023.txt" id="RFC3023">IETF
	  "RFC 3023: XML Media Types", M. Murata, S. St. Laurent, D. Kohn, July
	  1998.</bibl>
	  
	<bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="WSDL MediaType" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.markbaker.ca/2001/12/draft-baker-soap-media-reg-02.txt" id="wsdl-media-type">IETF Internet Draft "The 'application/wsdl+xml' media type",
	   @@@, "draft-baker-soap-media-reg-02.txt"
       July 9, 2002. (Work in progress).</bibl>

<!--	  
	<bibl key="14" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/html401/interact/forms.html#submit-format" id="submit-format">
	  W3C Recommendation "HTML 4.01 Specification - Submit format"
	  Dave Raggett, Arnaud Le Hors, Ian Jacobs, 24 December 1999.</bibl>
	  
	<bibl key="15" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/html401/appendix/notes.html#ampersands-in-uris" id="ampersands-in-uris">
	  W3C Recommendation "HTML 4.01 Specification - Ampersands in URIs"
	  Dave Raggett, Arnaud Le Hors, Ian Jacobs, 24 December 1999.</bibl>
	  
	<bibl key="16" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4" id="form-content-types">
	  W3C Recommendation "HTML 4.01 Specification - Form content types"
	  Dave Raggett, Arnaud Le Hors, Ian Jacobs, 24 December 1999.</bibl>
-->
	  
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="WSDL 1.2 Bindings" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2003/WD-wsdl12-bindings-20030124" id="WSDL-PART2">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Web Services Description (WSDL) Version 1.2:
	    Bindings</titleref>, J-J. Moreau, J.  Schlimmer,
	    Editors. World Wide Web Consortium, 24
	    January 2003. This version of the Web Services
	    Description Version 1.2: Bindings Specification is available
	    is available at http://www.w3.org/TR/2003/WD-wsdl12-bindings-20030124. The <loc href="http://www.w3.org/TR/wsdl12-bindings" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of Web Services
	    Description Version 1.2: Bindings</loc> is available at
	    http://www.w3.org/TR/wsdl12-bindings.
	  </bibl>

        </blist>

      </div2>

      <div2 id="Informative-References">
 	<head>Informative References</head>

	<blist>

 	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="IETF RFC 2045" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.ietf.org/rfc/rfc2045.txt" id="RFC2045">	   
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Multipurpose Internet Mail Extensions (MIME) Part
	    One: Format of Internet Message Bodies</titleref>, N. Freed,
	    N. Borenstein, Authors. Internet Engineering Task Force,
	    November 1996. Available at
	    http://www.ietf.org/rfc/rfc2045.txt.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="RFC2616" key="IETF RFC 2616" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.ietf.org/rfc/rfc2616.txt">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Hypertext Transfer Protocol --
	    HTTP/1.1</titleref>, R. Fielding, J. Gettys, J. Mogul,
	    H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee,
	    Authors. Internet Engineering Task Force, June
	    1999. Available at http://www.ietf.org/rfc/rfc2616.txt.
	  </bibl>
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="SOAP11" key="SOAP 1.1" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2000/NOTE-SOAP-20000508/">	    
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Simple Object Access Protocol (SOAP)
	    1.1</titleref>, D. Box, D. Ehnebuske, G. Kakivaya,
	    A. Layman, N. Mendelsohn, H. Frystyk Nielsen, S. Thatte,
	    D. Winer, Editors. World Wide Web Consortium, 8 May
	    2000. This version of the Simple Object Access Protocol 1.1
	    Note is http://www.w3.org/TR/2000/NOTE-SOAP-20000508. The
	    <loc href="http://www.w3.org/TR/SOAP/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	    Simple Object Access Protocol 1.1</loc> is available at
	    http://www.w3.org/TR/SOAP.
	  </bibl>
	  
	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" id="SOAP12-PART1" key="SOAP 1.2 Part 1: Messaging Framework" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2002/CR-soap12-part1-20021219/">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">SOAP Version 1.2 Part 1: Messaging
	    Framework</titleref>, M. Gudgin, M. Hadley, N. Mendelsohn,
	    J-J. Moreau, H. Frystyk Nielsen, Editors. World Wide Web
	    Consortium, 19 December 2002. This version of the SOAP
	    Version 1.2 Part 1 Specification is
	    http://www.w3.org/TR/2002/CR-soap12-part1-20021219/. The
	    <loc href="http://www.w3.org/TR/soap12-part1/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest
	    version of SOAP Version 1.2 Part 1</loc> is available at
	    http://www.w3.org/TR/soap12-part1/.
	  </bibl>
<!--	  
	  <bibl id="SOAP12-PART2" key="SOAP 1.2: Adjuncts"
	    xmlns:xlink="http://www.w3.org/1999/xlink"
	    xlink:type="simple" xlink:show="replace"
	    xlink:actuate="onRequest"
	    href="http://www.w3.org/TR/2002/WD-soap12-part2-20020626/">	    
	    <titleref>SOAP Version 1.2 Part 2: Adjuncts</titleref>,
	    M. Gudgin, M. Hadley, N. Mendelsohn, J-J. Moreau, and
	    H. Frystyk Nielsen, Editors. World Wide Web Consortium, 26 June
	    2002. This version of the SOAP Version 1.2 Part 2
	    Specification is
	    http://www.w3.org/TR/2002/WD-soap12-part2-20020626. The <loc
	    href="http://www.w3.org/TR/soap12-part2/">latest version of
	    SOAP Version 1.2 Part 2</loc> is available at
	    http://www.w3.org/TR/soap12-part2.
	  </bibl>

	  <bibl key="23" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" id="RFC2026" href="http://www.ietf.org/rfc/rfc2026.txt">IETF "RFC 2026:
	  The Internet Standards Process - Revision 3", section
	  4.2.3, S. Bradner, October 1996.</bibl>
-->

	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="XML Linking" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2001/REC-xlink-20010627/" id="XLINK">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">XML Linking Language (XLink) Version 1.0</titleref>, S.
	    DeRose, E. Maler, D. Orchard, Editors. World Wide Web
	    Consortium, 27 June 2001. This version of the XML Linking
	    Language 1.0 Recommendation is
	    http://www.w3.org/TR/2001/REC-xlink-20010627. The <loc href="http://www.w3.org/TR/xlink/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of XML
	    Linking Language 1.0</loc> is available at
	    http://www.w3.org/TR/xlink.
	  </bibl>

	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" key="WSDL 1.1" href="http://www.w3.org/TR/2001/NOTE-wsdl-20010315" id="WSDL11">
	  <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Web Services Description Language (WSDL)
	  1.1</titleref>, E. Christensen, F. Curbera, G. Meredith, and
	  S. Weerawarana, Authors. World Wide Web Consortium, 15 March
	  2002.  This version of the Web Services Description Language
	  Note is http://www.w3.org/TR/2001/NOTE-wsdl-20010315. The <loc href="http://www.w3.org/TR/wsdl" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of Web
	  Services Description Language</loc> is available at
	  http://www.w3.org/TR/wsdl.
	</bibl>

	  <bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="WSDL 1.2 Primer" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/2002/ws/desc/" id="WSDL-PART0">
	    <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Web Services Description (WSDL) Version 1.2:
	    Primer</titleref>, K. Sankar, K. Liu, D. Booth,
	    Editors. World Wide Web Consortium, 24
	    January 2003. The editors' version of the Web
	    Services Description Version 1.2: Primer document is
	    available from http://www.w3.org/2002/ws/desc/.
	  </bibl>

	<bibl xmlns:xlink="http://www.w3.org/1999/xlink" key="WSD Requirements" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest" href="http://www.w3.org/TR/2002/WD-ws-desc-reqs-20020429/" id="WSDReqs">
	  <titleref xlink:type="simple" xlink:show="new" xlink:actuate="onRequest">Web Services Description Requirements</titleref>,
	  J. Schlimmer, Editor. World Wide Web Consortium, 29 April
	  2002. This version of the Web Services Description Requirements
	  document is
	  http://www.w3.org/TR/2002/WD-ws-desc-reqs-20020429. The <loc href="http://www.w3.org/TR/ws-desc-reqs/" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">latest version of
	  Web Services Description Requirements</loc> is available at
	  http://www.w3.org/TR/ws-desc-reqs.
	</bibl>
	
<!--
	<bibl key="WSD Usage Scenarios"
	  xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple"
	  xlink:show="replace" xlink:actuate="onRequest"
	  href="http://www.w3.org/TR/2002/WD-ws-desc-usecases-20020604/"
	  id="WSDReqs"> <titleref>Web Services Description Usage
	  Scenarios</titleref>, W. Sadiq, S. Kumar, Editors. World Wide Web
	  Consortium, 4 June 2002. This version of the Web Services
	  Usage Scenarios document is
	  http://www.w3.org/TR/2002/WD-ws-desc-usecases-20020604. The
	  <loc href='http://www.w3.org/TR/ws-desc-usecases/'>latest
	  version of Web Services Usage Scenarios</loc> is available at
	  http://www.w3.org/TR/ws-desc-usecases.
	</bibl>
-->	
	</blist>

      </div2>

</div1>

</body>

<!-- ******************************************************************* -->
<!-- ******************************************************************* -->

<back>

    <div1 id="ietf-draft">
    <head>The <attval>application/wsdl+xml</attval> Media Type</head>

   <ednote>
     <name>JJM</name>
     <date>20021107</date>
     <edtext>This was lifted from the SOAP 1.2 specification, and needs to be
     edited to reflect WSDL's own requirements. For example, the WG has not
     reached consensus on whether to use "text/xml", "text/wsdl+xml"
     or "application/wsdl+xml".
     </edtext>
   </ednote>
   
   <p>This appendix defines the <attval>application/wsdl+xml</attval>
   media type which can be used to describe WSDL 1.2 documents
   serialized as XML. It is referenced by the corresponding IANA registration document
   <bibref ref="wsdl-media-type"/>.</p>
      
   
   <div2 id="ietf-reg">
   <head>Registration</head>
   
   <glist>
     <gitem><label>MIME media type name:</label><def><p>application</p></def></gitem>
     
     <gitem><label>MIME subtype name:</label><def><p>wsdl+xml</p></def></gitem>
     
     <gitem><label>Required parameters:</label><def><p>none</p></def></gitem>
     
     <gitem><label>Optional parameters:</label>
     <def>
       <glist>
       <gitem><label>charset</label>
       <def><p>This parameter has identical semantics to the charset parameter
       of the <attval>application/xml</attval> media type as specified in
       <bibref ref="RFC3023"/>.</p></def></gitem>

       </glist>
     </def></gitem>

  <gitem><label>Encoding considerations:</label>
     <def><p>Identical to those of <attval>application/xml</attval>
     as described in <bibref ref="RFC3023"/>,
     section 3.2, as applied to the WSDL document infoset.</p></def></gitem>

  <gitem><label>Security considerations:</label>
     <def><p>See section <specref ref="ietf-sec"/>.</p></def></gitem>

  <gitem><label>Interoperability considerations:</label>
     <def><p>There are no known interoperability issues.</p></def></gitem>

  <gitem><label>Published specification:</label>
     <def><p>This document (Part 1) and <bibref ref="WSDL-PART2"/> (Part 2).</p></def></gitem>

  <gitem><label>Applications which use this media type:</label>
     <def><p>No known applications currently use this media type.</p></def></gitem>

  <gitem><label>Additional information:</label>

     <def><glist>
       <gitem>
          <label>File extension:</label>
          <def><p>WSDL documents are not required or expected to be stored as
          files.</p></def>
       </gitem>

     <gitem>
          <label>Fragment identifiers:</label>
          <def><p>Identical to that of <attval>application/xml</attval> as described in
          <bibref ref="RFC3023"/>,
          section 5.</p></def>
       </gitem>

     <gitem>
          <label>Base URI:</label>
          <def><p>As specified in <bibref ref="RFC3023"/>, section 6.</p>
          </def>
     </gitem>

     <gitem>
          <label>Macintosh File Type code:</label>
          <def><p>TEXT</p></def>
     </gitem>
    </glist></def>
   </gitem>

   <gitem><label>Person and email address to contact for further information:</label>
     <def><p>@@@ &lt;@@@@&gt;</p></def></gitem>

   <gitem><label>Intended usage:</label><def><p>COMMON</p></def></gitem>

   <gitem><label>Author/Change controller:</label>
     <def><p>The WSDL 1.2 specification set is a work product of the World Wide
     Web Consortium's
     <loc xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" href="http://www.w3.org/2002/ws/desc/" xlink:show="replace" xlink:actuate="onRequest">Web Service Description Working Group</loc>.
     The W3C has change control over these specifications.</p></def></gitem>
     
     </glist>

    </div2>
    
    <div2 id="ietf-sec">
    <head>Security considerations</head>
    
   <ednote>
     <name>JJM</name>
     <date>20021107</date>
     <edtext>Are there any security considerations other than the standard
     ones.</edtext>
   </ednote>

  <p>This media type uses the <attval>+xml</attval> convention, it shares
  the same security considerations as described in
  <bibref ref="RFC3023"/>, section 10.</p>

    </div2>
        
    </div1>


    <inform-div1>
      <head>Acknowledgements</head>

      <p>This document is the work of the W3C Web
      Service Description Working Group.</p>

      <p>Members of the Working Group are (at the time of writing, and by
      alphabetical order): Adi Sakala (IONA Technologies),
Allen Brookes (Rogue Wave Softwave),
Amelia Lewis (TIBCO/Extensibility),
Arthur Ryman (IBM),
Barbara Zengler (DaimlerChrysler Research and Technology),
Dale Moberg (Cyclone Commerce),
Dan Kulp (IONA Technologies),
Daniel Schutzer (Citigroup),
Dave Solo (Citigroup),
David Booth (W3C),
Dietmar Gaertner (Software AG),
Don Mullen (TIBCO Software),
Erik Ackerman (Lexmark),
Glen Daniels (Macromedia),
Igor Sedukhin (Computer Associates),
Jacek Kopecky (Systinet),
Jean-Jacques Moreau (Canon),
Jeff Mischkinsky (Oracle Corporation),
Jeffrey Schlimmer (Microsoft Corporation),
Jerry Thrasher (Lexmark),
Johan Pauhlsson (L'&#201;changeur),
Jonathan Marsh (<emph>Chair</emph>, Microsoft Corporation),
Kevin Canyang Liu (SAP),
Laurent De Teneuille (L'&#201;changeur),
Lily Liu (webMethods, Inc.),
Martin Gudgin (Microsoft Corporation),
Michael Champion (Software AG),
Michael Mahan (Nokia),
Michael Mealling (Verisign),
Mike Ballantyne (Electronic Data Systems),
Mike Davoren (W. W. Grainger),
Mike McHugh (W. W. Grainger),
Philippe Le H&#233;garet (W3C),
Prasad Yendluri (webMethods, Inc.),
Roberto Chinnici (Sun Microsystems),
Sandeep Kumar (Cisco Systems),
Sandra Swearingen (U.S. Department of Defense, U.S. Air Force),
Sanjiva Weerawarana (IBM),
Stefano Pogliani (Sun Microsystems),
Stephen White (SeeBeyond),
Steve Graham (Global Grid Forum),
Steve Lind (AT&amp;T),
Steve Tuecke (Global Grid Forum),
Tim Finin (University of Maryland),
Tom Jordahl (Macromedia),
Umit Yalcinalp (Oracle Corporation),
Waqar Sadiq (Electronic Data Systems),
William Stumbo (Xerox),
William Vambenepe (Hewlett-Packard Company),
Youenn Fablet (Canon)
</p>

      <p>Previous members were: Aaron Skonnard (DevelopMentor),
Don Wright (Lexmark),
Jochen Ruetschlin (DaimlerChrysler Research and Technology),
Joyce Yang (Oracle Corporation),
Keith Ballinger (Microsoft),
Krishna Sankar (Cisco Systems),
Mario Jeckle (DaimlerChrysler Research and Technology),
Pallavi Malu (Intel Corporation)
</p>

<p>The people who have contributed to discussions on
<loc xmlns:xlink="http://www.w3.org/1999/xlink" href="mailto:www-ws-desc@w3.org" xlink:type="simple" xlink:show="replace" xlink:actuate="onRequest">www-ws-desc@w3.org</loc>
are also gratefully acknowledged.</p>

    </inform-div1>

    <inform-div1 id="migration">
      <head>Migrating from WSDL 1.1 to WSDL 1.2</head>
      <p>This section will attempt to document some of the migration
         concerns of going from WSDL 1.1 to WSDL 1.2. We do not claim
         that all migration problems will be addressed here.</p>

      <div2>
        <head>Operation Overloading</head>
        <p>WSDL 1.1 supported operation overloading and WSDL 1.2 removes
           it. This section will provide some rationale for it and provide
           hints on how to work around some scenarios.</p>
      </div2>

      <div2>
        <head>PortType Inheritance</head>
        <p>We now have portType inheritance.</p>
      </div2>

    </inform-div1>

    <inform-div1 id="other-schemalang">
	  <head>Examples of Specifications of Extension Elements for Alternative Schema
Language Support.</head>

    <div2 id="dtd">
	  <head>DTD</head>
	  <p>A DTD may be used as the schema language for WSDL.  It may not be embedded;
it must be imported.  A namespace must be assigned.  DTD types may be
referenced only by the <att>element</att> <emph>attribute information item</emph>; DTDs do not have
a construct corresponding to the <att>type</att> <emph>attribute information item</emph>.</p>
<p>
The prefix, dtd, used throughout the following is mapped to the
namespace URI <attval>http://www.example.org/dtd/</attval>.</p>
<p>
The <el>dtd:import</el> <emph>element information item</emph> references an external Document Type
Definition, and has the following infoset properties:</p>
<ulist>
<item><p>A [local name] of import.</p></item>
<item><p>A [namespace name] of
"http://www.example.org/dtd".</p></item>
<item><p>One or two <emph>attribute information item</emph>s, as follows:</p>
<ulist>
<item><p>A <att>namespace</att> <emph>attribute information item</emph> as described
below.</p></item>
<item><p>An optional <att>location</att> <emph>attribute information item</emph> as described below.</p></item>
</ulist>
</item>
</ulist>
<div3 id="dtd-namespaceaii">
<head><att>namespace</att> <emph>attribute information item</emph></head>

<p>The <att>namespace</att> <emph>attribute information item</emph> sets the namespace to be used with
all imported element definitions described in the DTD.  It has the following
infoset properties:</p>
<ulist>
<item><p>A [local name] of namespace.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>namespace</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
<p>The WSDL author should ensure that a prefix is associated with the
namespace at the proper scope (probably document scope).</p>
</div3>
<div3 id="dtd-locationaii">
<head><att>location</att> <emph>attribute information item</emph></head>
<p>The <att>location</att> <emph>attribute information item</emph>, if present, provides a hint to the
processor as to where the DTD may be located.  Caching and cataloging
technologies may provide better information than this hint.  The <att>location</att>
<emph>attribute information item</emph> has the following infoset properties:</p>
<ulist>
<item><p>A [local name] of location.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>location</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div3>
<div3 id="dtd-ref">
<head>References to Element Definitions</head>
<p>In referring to an element definition (&lt;!ELEMENT&gt;) from a message part, the
<att>type</att> <emph>attribute information item</emph> may not be used.  The <att>element</att> <emph>attribute information item</emph>
must be used.  Its value must correspond to the content of
the <att>namespace</att> <emph>attribute information item</emph> of the <el>dtd:import</el> <emph>element information item</emph>.
The local name part must correspond to an element defined
in the DTD.</p>
<p>
Note that this pattern does not attempt to make DTDs namespace-aware.  It
applies namespaces externally, in the import phase.</p>
</div3>
</div2>

<div2 id="relax">
<head>RELAX NG</head>
<p>A RELAX NG schema may be used as the schema language for WSDL.  It may be
embedded or imported; import is preferred.  A namespace must be specified;
if an imported schema specifies one, then the [actual value] of the  <att>namespace</att> <emph>attribute information item</emph> in the
<el>import</el> <emph>element information item</emph> must match the specified namespace.  RELAX NG provides both type and element
definitions.  The following discussion supplies the prefix rng which is
mapped to the URI "http://www.relaxng.org/ns/structure/1.0".</p>

<div3 id="import-relax">
<head>Importing RELAX NG</head>

<p>
Importing a RELAX NG schema uses the rng:include mechanism defined by RNG,
with restrictions on its syntax and semantics.  A child <emph>element information item</emph>
of the <el>types</el> <emph>element information item</emph> is defined with the Infoset
properties as follows:</p>

<ulist>
<item><p>A [local name] of include.</p></item>
<item><p>A [namespace name] of "http://www.relaxng.org/ns/structure/1.0".</p></item>
<item><p>Two <emph>attribute information item</emph>s as follows:</p>
<ulist>
<item><p>A <att>ns</att> <emph>attribute information item</emph> as described
below.</p></item>
<item><p>A <att>href</att> <emph>attribute information item</emph> as described
below.</p></item>
<item><p>Additional <emph>attribute information item</emph>s as defined by the RNG
specification.</p></item>
</ulist>
</item>
</ulist>

<p>
Note that WSDL restricts the <el>rng:include</el> <emph>element information item</emph> to be empty.  That is, it
cannot redefine <el>rng:start</el> and <el>rng:define</el> <emph>element information item</emph>s; it may be used
solely to import a schema.</p>


<div4 id="relax-import-nsaii">
<head><att>ns</att> <emph>attribute information item</emph></head>
<p>The <att>ns</att> <emph>attribute information item</emph> defines the namespace of the type and
element definitions imported from the referenced schema.  If the referenced
schema contains an <att>ns</att> <emph>attribute information item</emph> on its <el>grammar</el> <emph>element information item</emph>, then the values of these two <emph>attribute information item</emph>s
must be identical.  If the imported grammar does not have an
<att>ns</att> <emph>attribute information item</emph>
then the namespace specified here is applied to all components of the schema
as if it did contain such an <emph>attribute information item</emph>.  The <att>ns</att> <emph>attribute information item</emph>
contains the following Infoset properties:</p>
<ulist>
<item><p>A [local name] of ns.</p></item>
<item><p>A [namespace name] which has no value.</p></item>
</ulist>
<p>The type of the <att>ns</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div4>
<div4 id="relax-import-hrefaii">
<head><att>href</att> <emph>attribute information item</emph></head>
<p>
The <att>href</att> <emph>attribute information item</emph> must be present, according to the rules
of the RNG specification.  However, WSDL allows it to be empty, and
considers it only a hint.  Caching and cataloging technologies may provide
better information that this hint.  The <att>href</att> <emph>attribute information item</emph> has
the following Infoset properties:</p>
<ulist>
<item><p>A [local name] of href.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>href</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div4>
</div3>
<div3 id="relax-embed">
<head>Embedding RELAX NG</head>
<p>
Embedding an RNG schema uses the existing top-level <el>rng:grammar</el> <emph>element information item</emph>.  It may be viewed as simply cutting and pasting an
existing, stand-alone schema to a location inside the Types Component.  The
<el>rng:grammar</el> <emph>element information item</emph> has the following Infoset properties:</p>
<ulist>
<item><p>A [local name] of grammar.</p></item>
<item><p>A [namespace name] of
"http://www.relaxng.org/ns/structure/1.0".</p></item>
<item><p>An <att>ns</att> <emph>attribute information item</emph>s as described below.</p></item>
<item><p>Additional <emph>attribute information item</emph>s as specified for the <el>rng:grammar</el>
<emph>element information item</emph> in the RNG specification.</p></item>
<item><p>Child <emph>element information item</emph>s as specified for the <el>rng:grammar</el> <emph>element information item</emph>
in the RNG specification.</p></item>
</ulist>
<div4 id="relax-embed-nsaii">
<head><att>ns</att> <emph>attribute information item</emph></head>
<p>
The <att>ns</att> <emph>attribute information item</emph> defines the namespace of the type and
element definitions embedded in this schema.  WSDL modifies the RNG
definition of the <el>rng:grammar</el> <emph>element information item</emph> to make this <emph>attribute information item</emph> required.  The <att>ns</att> <emph>attribute information item</emph> has the
following infoset properties:</p>
<ulist>
<item><p>A [local name] of ns.</p></item>
<item><p>A [namespace name] that has no value.</p></item>
</ulist>
<p>The type of the <att>ns</att> <emph>attribute information item</emph> is <emph>xs:anyURI</emph>.</p>
</div4>
</div3>
<div3 id="relax-ref">
<head>References to Type and Element Definitions</head>
<p>Whether embedded or imported, the type and element definitions present in a
schema may be referenced from a message part.</p>
<p>
A named rng:define definition may be referenced from the <el>part</el>
<emph>element information item</emph> using the <att>type</att> <emph>attribute information item</emph>.  
The QName is constructed from the namespace (<att>ns</att> <emph>attribute information item</emph>) of the schema
and the content of the <att>name</att> <emph>attribute information item</emph> of the <el>define</el> <emph>attribute information item</emph>.
A <att>type</att> <emph>attribute information item</emph> may not be used to refer to an
<el>rng:element</el> <emph>element information item</emph>.</p>

<p>A named Relax NG element definition may be referenced from the
<el>part</el> <emph>element information item</emph>
using the <att>element</att> <emph>attribute information item</emph>.  The QName is
constructed from the namespace (<att>ns</att> <emph>attribute information item</emph>) of the schema
and the content of the <att>name</att> <emph>attribute information item</emph> of the <el>element</el> <emph>element information item</emph>
An <att>element</att> <emph>attribute information item</emph> may not be used to refer to an
<el>rng:define</el> <emph>element information item</emph>.</p>
</div3>

</div2>
	</inform-div1>

    <inform-div1 id="changelog">
      <head>Part 1 Change Log</head>

      <div2 id="wsdl-changelog">
	<head>WSDL Specification Changes</head>

<table id="wsdl-changelog-table" border="1">
  <tbody>
    <tr>
      <th rowspan="1" colspan="1">Date</th>
      <th rowspan="1" colspan="1">Author</th>
      <th rowspan="1" colspan="1">Description</th>
    </tr>
	<tr>
	  <td rowspan="1" colspan="1">20030123</td>
	  <td rowspan="1" colspan="1">JJM</td>
	  <td rowspan="1" colspan="1"> Change name of {variety} property to {message exchange pattern}</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030122</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added some &lt;emph&gt;, &lt;el&gt;, &lt;att&gt;, &amp;AII;,
	  &amp;EII;, &lt;el&gt; markup</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030120</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Incorporated Relax NG section from Amy's types proposal</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030120</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Incorporated DTD section from Amy's types proposal</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">2003020</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Incorporated Amy's types proposal except annexes</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030118</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Made some changes related to extensibility</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030118</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Amended content model for operation to disallow fault
	  element children in the input-only and output-only cases</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030118</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Removed {extension} properties from binding components and
	  port components. Added text relating to how extension elements
	  are expected to annotate the component model.</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030117</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Made further edits related to extensibility model now using
	  substitution groups</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030117</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added initial draft of section on QName resolution</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030117</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Reworked section on extensibility</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030116</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added text regarding multiple operations with the same
	  {name} in a single port type</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030116</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added section on symbol spaces</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030116</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Removed various ednotes</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030116</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added section on component equivalence</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20030116</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">More work on include and import</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021201</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Did some work on wsdl:include</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added placeholder for wsdl:include</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Cleaned up language concerning <att>targetNamespace</att> <emph>attribute information item</emph> <specref ref="Definitions_targetnamespace_attribute"/></td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">changed the language regarding extensibility elements in
	  <specref ref="Definitions_XMLRep"/>.</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Moved all issues into issues document (
	  ../issues/wsd-issues.xml )</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Removed name attribute from definitions element</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021127</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Removed 'pseudo-schema'</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021121</td>
	  <td rowspan="1" colspan="1">JJM</td>
	  <td rowspan="1" colspan="1">Updated media type draft appendix ednote to match minutes.
	  </td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021111</td>
	  <td rowspan="1" colspan="1">SW</td>
	  <td rowspan="1" colspan="1">Added appendix to record migration issues.</td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021107</td>
	  <td rowspan="1" colspan="1">JJM</td>
	  <td rowspan="1" colspan="1">Incorporated and started adapting SOAP's media type draft appendix.
	  </td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20021010</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Added port type extensions, removed service type.
	  </td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20020910</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Removed parameterOrder from spec, as decided at September
	  2002 FTF
	  </td>
	</tr>
	<tr>
	  <td rowspan="1" colspan="1">20020908</td>
	  <td rowspan="1" colspan="1">MJG</td>
	  <td rowspan="1" colspan="1">Updated parameterOrder description, fixed some spelling
	  errors and other types. Added ednote to discussion of message parts</td>
	</tr>
    <tr>
       <td rowspan="1" colspan="1">20020715</td>
       <td rowspan="1" colspan="1">MJG</td>
       <td rowspan="1" colspan="1">AM Rewrite</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020627</td>
       <td rowspan="1" colspan="1">JJM</td>
       <td rowspan="1" colspan="1">Changed a few remaining &lt;emph&gt; to either
       &lt;att&gt; or &lt;el&gt;, depending on context.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020627</td>
       <td rowspan="1" colspan="1">SW</td>
       <td rowspan="1" colspan="1">Converted portType stuff to be infoset based and improved
           doc structure more.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020627</td>
       <td rowspan="1" colspan="1">SW</td>
       <td rowspan="1" colspan="1">Converted message stuff to be infoset based and improved
           doc structure more.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020625</td>
       <td rowspan="1" colspan="1">SW</td>
       <td rowspan="1" colspan="1">Mods to take into account JJM comments.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020624</td>
       <td rowspan="1" colspan="1">JJM</td>
       <td rowspan="1" colspan="1">Fixed spec so markup validates.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020624</td>
       <td rowspan="1" colspan="1">JJM</td>
       <td rowspan="1" colspan="1">Upgraded the stylesheet and DTD</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020624</td>
       <td rowspan="1" colspan="1">JJM</td>
       <td rowspan="1" colspan="1">Added sections for references and change log.</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020624</td>
       <td rowspan="1" colspan="1">JJM</td>
       <td rowspan="1" colspan="1">Removed Jeffrey from authors :-(  Added Gudge :-)</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020620</td>
       <td rowspan="1" colspan="1">SW</td>
       <td rowspan="1" colspan="1">Started adding abstract model</td>
    </tr>
    <tr>
       <td rowspan="1" colspan="1">20020406</td>
       <td rowspan="1" colspan="1">SW</td>
       <td rowspan="1" colspan="1">Created document from WSDL 1.1</td>
    </tr>
  </tbody>
</table>

      </div2>
    </inform-div1>

  </back>

</spec>