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FW: XML Linking Language (XLink) Version 1.1 Is a Candidate Recommendation (Call for Implementations)

From: Grosso, Paul <pgrosso@ptc.com>
Date: Tue, 28 Mar 2006 12:16:06 -0500
Message-ID: <CF83BAA719FD2C439D25CBB1C9D1D30202CA2F72@HQ-MAIL4.ptcnet.ptc.com>
To: <public-xml-core-wg@w3.org>


-----Original Message-----
From: w3c-ac-members-request@w3.org
[mailto:w3c-ac-members-request@w3.org] On Behalf Of Susan Lesch
Sent: Tuesday, 2006 March 28 11:04
To: w3c-ac-members@w3.org
Cc: Liam Quin
Subject: XML Linking Language (XLink) Version 1.1 Is a Candidate
Recommendation (Call for Implementations)

Dear Advisory Committee Representative,

W3C is pleased to announce that XLink 1.1 is a W3C Candidate
Recommendation. The approval and publication is in response to the
request posted to the Chairs mailing list:


The disposition of Last Call comments is available at:

A number of modest changes were made to address the comments received,
but not all the commentators were satisfied by the resolutions adopted
by the Working Group. Despite these outstanding objections, we have
decided to approve the advancement of XLink 1.1 to Candidate
Recommendation on the following basis:

 * It has satisfied the (quite narrow) requirements set out in the
   Requirements Document (http://www.w3.org/TR/xlink10-ext/) and

 * Positive feedback from a number of potential 'customers' has been

 * The outstanding objections fall almost entirely into two broad

   1) Disagreements regarding the completeness of the specification's
      approach to a number of aspects of URI processing, for example
      escaping, absolutization and behavior in the face of invalid
      URIs or invalid markup, with consequent risks to

   2) Concerns about interactions between this specification and other
      relevant W3C specifications, for example XHTML and DOM Level 2.

   To address (1), the XML Core Working Group has agreed to create a
   simple test harness and the beginning of a collection of test
   documents, which will enable such questions to be answered
   empirically. We invite contributions to this collection from anyone
   with concerns about XLink 1.1 interoperability issues.

   We have concluded that responsibility for addressing (2) should not
   rest with this document alone, as it raises broader issues of the
   appropriate forum for more general concerns arising from the
   interaction of W3C specifications.

   We will redirect these issues to appropriate forums, such as the
   Coordination Groups and the Compound Document Formats Working
   Group. We also welcome proposals to resolve these issues from
   individuals and invite them to contact the W3C Team.

Patent disclosures relevant to this specification may be found on the
XML Core Working Group's patent disclosure page in conformance with
W3C policy: http://www.w3.org/2004/01/pp-impl/18796/status#disclosures

Quoting from the XLink 1.1
W3C Candidate Recommendation - 28 March 2006

   XML Linking Language (XLink) Version 1.1

   W3C Candidate Recommendation - 28 March 2006

   This version:
   Latest version:
   Previous version:


   This specification defines the XML Linking Language (XLink) Version
   1.1, which allows elements to be inserted into XML documents in
   order to create and describe links between resources. It uses XML
   syntax to create structures that can describe links similar to the
   simple unidirectional hyperlinks of today's HTML, as well as more
   sophisticated links.

   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

   This is a Candidate Recommendation Working Draft as described in
   the Process Document. This document is intended for review by W3C
   members and other interested parties. The publication of this
   document constitutes a call for implementations of this
   specification. This specification will remain a Candidate
   Recommendation until at least 1 June 2006. 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.

   The XML Core Working Group will advance the specification
   to Proposed Recommendation when the following exit criteria
   have been met:

     * There are at least two interoperable implementations
       of the specification.

     * It has been shown that any valid XLink 1.1 document can
       be programmatically converted into an equivalent XLink 1.0

     * A test collection to enable checking the interoperability of
       recognizing and pre-processing XLinks has been created.

     * A minimum of four weeks of the CR period must have elapsed.

   Any feedback on implementation and use of this specification
   would be very welcome. To the extent possible, please provide
   a separate email message for each distinct comment.

   A preliminary Implementation Report is available at
   http://www.w3.org/XML/2006/01/xlink11-implementation.  The test
   collection is described at
   http://www.w3.org/XML/2006/03/xlink11-tests.  Contributions of
   tests and discussion of results should be sent to
   www-xml-linking-comments@w3.org (archive at

   This document has been produced by the W3C XML Core Working Group
   (charter at http://www.w3.org/2005/02/xml-core-wg-charter.html)
   as part of the XML Activity in the W3C Architecture Domain. For
   background on this work, please see the XML Activity Statement.

   Please report possible errors in this document to the public
   email list www-xml-linking-comments@w3.org (archive at
   Any confirmed errors will be documented in an list of errata
   available at http://www.w3.org/2001/06/xlink-errata.

   This specification implements all of the XLink 1.1 requirements
   documented in [Extending XLink 1.0]. These changes make XLink
   more useful in the places where it is already being used and
   make it practical in a variety of similar vocabularies.

   The patent policy for this document is the 5 February 2004 W3C
   Patent Policy. Patent disclosures relevant to this specification
   may be found on the XML Core Working Group's patent disclosure page
   (http://www.w3.org/2004/01/pp-impl/18796/status#disclosures). An
   individual who has actual knowledge of a patent which the
   individual believes contains Essential Claim(s) with respect to
   this specification should disclose the information in accordance
   with section 6 of the W3C Patent Policy.

The XML Core Working Group expects to receive more comments in the form
implementation feedback and test cases. The Working Group believes it
will have satisfied its implementation criteria by 1 June 2006.

This Call for Implementations follows section 7.4.3 of the W3C Process
Document: http://www.w3.org/2005/10/Process-20051014/tr.html#cfi

Thank you,

For Tim Berners-Lee, Director, and
Liam Quin, XML Activity Lead;
Susan Lesch, W3C Communications Team
Received on Tuesday, 28 March 2006 17:19:02 UTC

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