Call for Review: Requirements for WCAG 2.0 Extensions - First Public Working Draft

Dear WAI Interest Group Participants,

The W3C WAI Web Content Accessibility Guidelines Working Group (WCAG WG) 
invites you to comment on a First Public Working Draft of Requirements 
for WCAG 2.0 Extensions:
   http://www.w3.org/TR/wcag2-ext-req/

**About Requirements for WCAG 2.0 Extensions*:*

This document describes the requirements that the Web Content 
Accessibility Guidelines Working Group (WCAG WG) is setting for the 
development of Web Content Accessibility Guidelines (WCAG) 2.0 
extensions. Extensions are optional standards modules that build on the 
existing requirements for WCAG 2.0, and are designed to work in harmony 
with the WCAG 2.0 standard.

More information about this document is available in the blog post:
    https://www.w3.org/blog/2016/01/shaping-the-wcag-2-0-extensions

**For review*:*

The Working Group seeks public review of these requirements to ensure 
that extensions will strike an appropriate balance between meeting the 
needs of users with disabilities, working within existing WCAG 2.0 
conformance policies, and implementability.

**Comments*:*

WAI encourages commenters to consider responding on the following 
questions...

  * Do WCAG 2.0 extensions benefit the web accessibility space at this time?
  * Is the proposed relationship of extensions to WCAG 2.0 clear?
  * Will a conformance model that includes extensions be easy to manage?
  * Do potential conflicts between extensions cause concern or increase
    flexibility?

Please submit comments following the Instructions for Commenting on WCAG 
2.0 Documents:
    http://www.w3.org/WAI/WCAG20/comments/
or send email to the public comments list:
    public-comments-wcag20@w3.org
by *5 February 2016*

URI:
The first URI above go to the latest versions of the document. The 
"dated" versions of this draft is: 
<http://www.w3.org/TR/2016/WD-wcag2-ext-req-20160105/> . The difference 
between these URIs are explained in Referencing and Linking to WAI 
Guidelines and Technical Documents at: 
<http://www.w3.org/WAI/intro/linking.html>

Please let us know if you have any questions. Thank you in advance for 
your comments.
Feel free to circulate this message to other lists; please avoid 
cross-postings where possible.

Regards,
Andrew Kirkpatrick, WCAG WG co-chair,
Joshue O Connor, WCAG WG co-chair,
Michael Cooper, WCAG WG W3C Staff Contact
Judy Brewer, WAI Domain Lead