# XHTML™ Modularization 1.1

## W3C Editor's Draft 19 March 2008

This version:
  http://www.w3.org/TR/2007/ED-xhtml-modularization-20080319
Latest version:
  http://www.w3.org/TR/xhtml-modularization
Previous version:
  http://www.w3.org/TR/2006/WD-xhtml-modularization-20060705
Diff-marked version:
  xhtml-modularization-diff.html
Diff-marked from version 1.0
  xhtml-modularization-rec-diff.html
Editors:
  Daniel Austin, Sun Microsystems
  Subramanian Peruvemba, Oracle Corporation
  Shane McCarron, Applied Testing and Technology, Inc.
  Masayasu Ishikawa, W3C
  Mark Birbeck, x-port.net
Version 1.0 Editors:
  Murray Altheim, Sun Microsystems
  Frank Boumphrey, HTML Writers Guild
  Sam Dooley, IBM
  Shane McCarron, Applied Testing and Technology
  Sebastian Schnitzenbaumer, Mozquito Technologies AG
  Ted Wugofski, Openwave (formerly Gateway)

This document is also available in these non-normative formats: Single HTML file, PostScript version, PDF version, ZIP archive, or Gzip'd TAR archive.

Copyright ©2001-2008 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C liability, trademark and document use rules apply.

## Abstract

This document is version 1.1 of XHTML Modularization, an abstract modularization of XHTML and implementations of the abstraction using XML Document Type Definitions (DTDs) and XML Schemas. This modularization provides a means for subsetting and extending XHTML, a feature needed for extending XHTML's reach onto emerging platforms. This specification is intended for use by language designers as they construct new XHTML Family Markup Languages. This specification does not define the semantics of elements and attributes, only how those elements and attributes are assembled into modules, and from those modules into markup languages. This second version of this specification includes several minor updates to provide clarifications and address errors found in the first version. It also provides an implementation using XML Schemas.

## Status of This Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This is a Candidate Recommendation of "XHTML Modularization 1.1". It reflects changes arising from comments during the Last Call period. A "Disposition of Comments" report is available at http://www.w3.org/MarkUp/2007/xhtml-modularization-lc-doc-20070213.html. This specification is considered stable by the XHTML2 Working Group and is available for public review during the Candidate Recommendation review period. The exit criteria is @@@TBD@@@. The review period will end at the earliest @@@TBD@@@. An implementation report will be made available at http://www.w3.org/MarkUp/2008/xhtml-m12n-11-implementation.html.

The Working Group invites implementation feedback during this period. Since this specification represents an incremental improvement to its predecessor, and since there is already substantial implementation experience, we expect to have adequate validation before the end of the CR period. While we welcome implementation experience reports, the XHTML2 Working Group will not allow early implementation to constrain its ability to make changes to this specification prior to final release.

Publication as a Candidate Recommendation does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

If this document is approved as a W3C Recommendation, it will supercede version 1.0 as defined in http://www.w3.org/TR/2001/REC-xhtml-modularization-20010410/.

Publication as a Candidate Recommendation does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document has been produced by the W3C XHTML 2 Working Group as part of the HTML Activity. The goals of the XHTML 2 Working Group are discussed in the XHTML 2 Working Group charter.

This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

Public discussion of HTML takes place on www-html@w3.org (archive). To subscribe send an email to www-html-request@w3.org with the word subscribe in the subject line.

Please report errors in this document to www-html-editor@w3.org (archive).

# Quick Table of Contents

# Full Table of Contents