| XML
The mission of the XML Schema Working Group, part of the Extensible Markup Language (XML) Activity, is to maintain and enhance the XML Schema Definition Language, an XML vocabulary for defining document classes by specifying structural and non-structural constraints on documents. XML Schema is similar to, but more expressive than, the notation given in XML 1.0 and SGML for document type definitions.
End date | 31 January 2013 (or earlier) |
---|---|
Confidentiality | Proceedings are Member-only |
Initial Chair | David Ezell |
Initial Team Contacts (FTE %: 30) |
Michael Sperberg-McQueen, Liam Quin |
Usual Meeting Schedule | Telcons: Weekly Ftf: annually plus TPAC |
The XML Schema Working Group is in the process of finishing publication and review of an updated version of XML Schema Definition Language, called XSD 1.1. This new version has many new features of importance to users in industry and in other standards efforts that require the specification of XML languages. The primary focus of the Working Group is to move this new version toward Recommendation Status and to maintain it and older versions of XSD, including XML Schema 1.0.
The Working Group expects to demonstrate at least two interoperable implementations of each new feature of XSD 1.1 before requesting to advance to Proposed Recommendation.
A set of W3C Recommendations for:
The following additional items will be developed and/or maintained by the XML Schema Working Group:
Note: The Schema Working Group did publish Candidate Recommendation documents for Schema 1.1, but then, after making small but substantive changes as a result of comments, went back to Working Draft in December 2009. They are currently at Last Call. A relatively short second Candidate Recommendation review period is planned and, as of November 2010, the Working Group is focused on revising its test suite.
Specification | FPWD | LC | CR | PR | Rec |
---|---|---|---|---|---|
XSD 1.1 Part 1: Structures | N/A | N/A | April 2011 | June 2011 | August 2011 |
XSD 1.1 Part 2: Datatypes | N/A | N/A | April 2011 | June 2011 | August 2011 |
XSD: Component Designators | N/A | N/A | N/A | May 2011 | July 2011 |
It is expected that the XSD 1.1 Primer will be produced as a Working Group Note during 2011.
The expiration date of this charter shall be 30 January 2012.
XML has become a strategic technology in W3C and elsewhere. The deliverables of the XML Schema Working Group must satisfy the dependencies from other W3C Working Groups. Some dependencies to and from other W3C Working Groups will require close cooperation during the development process; history has shown that the requirements posed for the Schema work by these Working Groups may change substantially during the development process, which means the interdependency of the Schema work with these Working Groups must be managed actively:
To be successful, the XML Schema Working Group is expected to have 5 or more active participants for its duration. Effective participation to XML Schema Working Group is expected to consume half of a work day per week for each participant; more for editors. The XML Schema Working Group will allocate also the necessary resources for building Test Suites for each specification.
Participants are reminded of the Good Standing requirements of the W3C Process.
This group primarily conducts its work on the Member-only mailing list
w3c-xml-schema-ig@w3.org
(archive),
as well as various other lists:
w3c-xml-schema-wg@w3.org
(archive).
Public feedback for publication happens through www-xml-schema-comments@w3.org
(archive),
and general questions about the language come through xmlschema-dev@w3.org
(archive).
Information about the group (deliverables, participants, face-to-face meetings, teleconferences, etc.) is available from the XML Schema Working Group home page.
This Working Group operates under the W3C Patent Policy (5 February 2004 Version). To promote the widest adoption of Web standards, W3C seeks to issue Recommendations that can be implemented, according to this policy, on a Royalty-Free basis.
For more information about disclosure obligations for this group, please see the W3C Patent Policy Implementation.
This charter for the XML Schema Working Group has been created according to section 6.2 of the Process Document. In the event of a conflict between the provisions of any charter and the W3C Process, the W3C Process shall take precedence.
Please also see the previous charter for this group.
There are no new Recommendation Track deliverables in the 2011 revision of this Charter.
Copyright© 2011 W3C ® (MIT , ERCIM , Keio), All Rights Reserved.
$Date: 2011/03/13 18:54:38 $