Fw: WCAG 2.0 - W3C Web Standard Defines Accessibility for Next Generation Web

中根です。

既にご存じの方も多いことと思いますが、WCAG 2.0がとうとうW3C
Recommendationになりました。考えてもみればWCAG 1.0が勧告となったのが
1999年の5月のことでしたから、ほぼ10年越しでようやく、といった感じです。
(WCAG 1.0の時は私もまだW3Cのスタッフで、かつ大学院の学生でしたから、本
当に随分前だったのだと感じます。)

WCAG 2.0は、その内容も、仕様の構成もWCAG 1.0からは少なからず変わってい
ます。また、ここ2・3年に公開されたWorking Draftと、それ以前のものと比較
してみてもそれなりに違いがあります。たとえば、JIS X 8341-3 (いわゆるウェ
ブコンテンツJIS) が策定された際、このJIS規格は当時 (2003年〜2004年頃)
のWCAG 2.0のWorking Draftの内容をかなり意識してつくられたと記憶していま
すが、その頃のものと比べても、やはり少なくない変更があるように思います。
(私の記憶も随分曖昧ですが。)

今後、このWCAG 2.0がしばらくの間は多くの国で標準的なガイドラインとして
用いられるであろうことや、JIS X 8341-3との関係なども考えると、Webのア
クセシビリティにかかわる取り組みをしている皆さんと一緒に、WCAG 2.0を正
しく理解し、広めていくようなことをしていく必要があるのではないかと考え
ています。現時点で具体的な計画やアイディアがあるわけではありませんが、
何かご意見などありましたらご連絡ください。

中根雅文
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Dear WAI Interest Group Participants,

W3C issued a press release today announcing the publication of WCAG 2.0. The online version includes links to other languages and information about W3C and WAI, at:
	http://www.w3.org/2008/12/wcag20-pressrelease.html

See the end of this e-mail message for links to WCAG 2.0 resources.

Feel free to circulate this message to other lists; please avoid cross-postings where possible.

=============
PRESS RELEASE

W3C Web Standard Defines Accessibility for Next Generation Web
Collaborative Effort Results in More Flexible and Testable Standard; Advances Accessibility of the Web 

http://www.w3.org/ -- 11 December 2008 -- Today W3C announces a new standard that will help Web designers and developers create sites that better meet the needs of users with disabilities and older users. Drawing on extensive experience and community feedback, the Web Content Accessibility Guidelines (WCAG) 2.0 improve upon W3C's groundbreaking initial standard for accessible Web content.

This new standard from the W3C's Web Accessibility Initiative (WAI) will advance accessibility across the full range of Web content (such as text, images, audio, and video) and Web applications. WCAG 2.0 can be more precisely tested, yet it allows Web developers more flexibility and potential for innovation. Together with supporting technical and educational materials, WCAG 2.0 is easier to understand and use.

WCAG 2.0 addresses barriers to accessing the Web experienced by people with visual, auditory, physical, cognitive and neurological disabilities, and by older Web users with accessibility needs. WCAG 2.0 explains how to make content:
* Perceivable (for instance by addressing text alternatives for images, captions for audio, adaptability of presentation, and color contrast);
* Operable (by addressing keyboard access, color contrast, timing of input, seizure avoidance, and navigability);
* Understandable (by addressing readability, predictability, and input assistance); and
* Robust (for instance by addressing compatibility with assistive technologies).

Wide Support for WCAG 2.0

"Because WCAG 2.0 applies to all Web technologies, it can help ensure that the Web stays open to people with disabilities even as we continually introduce new technologies. We incorporated feedback from thousands of comments received during the development of WCAG 2.0 regarding user needs, and technical feasibility," said Dr. Gregg Vanderheiden, Co-Chair of WCAG Working Group, and Director of the Trace R&D Center at the University of Wisconsin. "WCAG 2.0 represents the outcome of a major collaborative effort, and its final form is widely supported by industry, disability organizations, research and government. This balance is important in order for WCAG 2.0 to serve as a unifying international standard for Web accessibility."

Extensive supporting materials to help developers and policy-makers include WCAG 2.0 at a Glance; WCAG 2.0 Documents; How to Meet WCAG 2.0: A Customizable Quick Reference; Understanding WCAG 2.0; and Techniques for WCAG 2.0. Techniques are already available for HTML, CSS, SMIL, Scripting, and Accessible Rich Internet Applications (WAI-ARIA), and are under development for additional Web technologies. Resources to support transition include How to Update Your Web Site to WCAG 2.0. Essential Components of Web Accessibility describes the relationship between WCAG 2.0 and other Web Accessibility Initiative (WAI) guidelines that also have 2.0 versions under development.

Far-Reaching Impact

"Web accessibility helps us reach a broader audience by supporting access to the Web for people with disabilities, as well as increasing usability across a variety of mobile devices," explained Loretta Guarino Reid, Co-Chair of WCAG WG, and Google Accessibility Engineer. "The Web community helped us demonstrate successful use of WCAG 2.0 and WCAG 2.0 test procedures in diverse types of Web technologies, Web content, interactive applications, and natural languages. These trial implementations also show the continuity between WCAG 1.0 and 2.0, as most Web sites that conformed to WCAG 1.0 did not need significant changes to meet WCAG 2.0."
While WCAG 1.0 was adopted widely, there is even broader interest in adoption of WCAG 2.0 by organizations and governments worldwide. The Policy for Authorized W3C Translations is expected to facilitate direct adoption in local languages. 
"In the recently passed United Nations Convention on the Rights of Persons with Disabilities, access to information and communications technologies is for the first time recognized internationally as a human right," according to George Kerscher, Secretary General of the DAISY Consortium. "WCAG 2.0 will help to make access to information a reality around the world."

Current and recent participants in the WCAG Working Group include Adobe, AOL, Google, IBM, International Webmasters Association/HTML Writers' Guild, Microsoft, NIST, SAP, and Vision Australia, and individual Invited Experts from research, disability, government and standards organizations in Australia, Canada, Europe, Japan, and the United States. In addition, the extensive public review process resulted in comments from hundreds of organizations and individuals around the world.

=======================
TESTIMONIALS IN SUPPORT

These organizations expressed support of WCAG 2.0 through testimonials:
Access Board; Adobe; American Association of People with Disabilities; ANEC; Boeing; CTIC Foundation; Deque; Disability Rights Fund; European Commission for Employment, Social Affairs and Equal Opportunities; European Commission for Information Society and Media; European Disability Forum; UN Global Initiative for Inclusive ICTs (G3ict); Hitachi; HP; IBM; Information Technology Research and Standardization Center (INSTAC); Innovimax; International Webmasters' Association / HTML Writers' Guild; Internet Society (ISOC); Microsoft; Mitsue-Links; National Center for Accessible Media (NCAM); SAP; Trace Research & Development Center; UNESCO; and Vision Australia.

For the full text of these testimonials, see: http://www.w3.org/2008/12/wcag20-testimonial

==============
WCAG RESOURCES

Please see additional information linked below.
WCAG Overview
	http://www.w3.org/WAI/WCAG20/
WCAG 2.0 technical standard
	http://www.w3.org/TR/WCAG20/
WCAG 2.0 at a Glance
	http://www.w3.org/WAI/WCAG20/glance/
How to Meet WCAG 2.0: A customizable quick reference
	http://www.w3.org/WAI/WCAG20/quickref/
Blog post
	http://www.w3.org/QA/2008/12/wcag_20_is_finalized.html
Related WAI Guidelines and Techniques
	http://www.w3.org/WAI/guid-tech.html

Please let us know if you have any questions.

Regards,
Shawn Lawton Henry, Education and Outreach Coordinator, W3C Web Accessibility Initiative Judy Brewer, Director, Web Accessibility Initiative On behalf of: 
Loretta Guarino Reid, Co-chair of WCAG WG, and Computer Scientist, Google Inc.
Gregg Vanderheiden, Co-chair of WCAG WG, and Director of Trace R&D Center, University of Wisconsin-Madison
Michael Cooper, W3C Team Contact for WCAG WG


-----
Shawn Lawton Henry
W3C Web Accessibility Initiative (WAI)
e-mail: shawn@xxxxxx
phone: +1.617.395.7664
about: http://www.w3.org/People/Shawn/

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