Edit comment LC-1315 for Accessibility Guidelines Working Group

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Comment LC-1315

Comment Shortname:

Commenter: Takayuki Watanabe, Makoto Ueki, and Masahiro Umegaki <nabe@lab.twcu.ac.jp> on behalf of JIS WG2

Message-id:

Section of the document concerned:

[Free text description]Document as a wholeIntroduction Related Documents Authoring tools The Role of User Agents The Four Principles of Accessibility Important New Terms Used in WCAG 2.0 Conformance Technology assumptions and the "baseline" Conformance levels and the baseline Conformance claims Content that conforms to WCAG 1.0 How to refer to WCAG 2.0 from other documents Guideline 1.1 Success Criterion 1.1.1 Guideline 1.2 Success Criterion 1.2.1 Success Criterion 1.2.2 Success Criterion 1.2.3 Success Criterion 1.2.4 Success Criterion 1.2.5 Success Criterion 1.2.6 Success Criterion 1.2.7 Guideline 1.3 Success Criterion 1.3.1 Success Criterion 1.3.2 Success Criterion 1.3.3 Success Criterion 1.3.4 Success Criterion 1.3.5 Guideline 1.4 Success Criterion 1.4.1 Success Criterion 1.4.2 Success Criterion 1.4.3 Success Criterion 1.4.4 Guideline 2.1 Success Criterion 2.1.1 Success Criterion 2.1.2 Guideline 2.2 Success Criterion 2.2.1 Success Criterion 2.2.2 Success Criterion 2.2.3 Success Criterion 2.2.4 Success Criterion 2.2.5 Success Criterion 2.2.6 Guideline 2.3 Success Criterion 2.3.1 Success Criterion 2.3.2 Guideline 2.4 Success Criterion 2.4.1 Success Criterion 2.4.2 Success Criterion 2.4.3 Success Criterion 2.4.4 Success Criterion 2.4.5 Success Criterion 2.4.6 Success Criterion 2.4.7 Success Criterion 2.4.8 Guideline 2.5 Success Criterion 2.5.1 Success Criterion 2.5.2 Success Criterion 2.5.3 Success Criterion 2.5.4 Guideline 3.1 Success Criterion 3.1.1 Success Criterion 3.1.2 Success Criterion 3.1.3 Success Criterion 3.1.4 Success Criterion 3.1.5 Success Criterion 3.1.6 Guideline 3.2 Success Criterion 3.2.1 Success Criterion 3.2.2 Success Criterion 3.2.3 Success Criterion 3.2.4 Success Criterion 3.2.5 Guideline 4.1 Success Criterion 4.1.1 Success Criterion 4.1.2 Guideline 4.2 Success Criterion 4.2.1 Success Criterion 4.2.2 Success Criterion 4.2.3 Success Criterion 4.2.4 Appendix A: Glossary Appendix B: Checklist Appendix C: Acknowledgements Appendix D: Comparison of WCAG 1.0 checkpoints to WCAG 2.0 Appendix E: References
or

Refinement of the section concerned:

Status:

open proposal pending resolved_yes resolved_no resolved_partial other assigned to Nobody Abma, Jake Abou-Zahra, Shadi Allan, Jim Auclair, Christopher Avila, Jonathan Babinszki, Tom Bailey, Bruce Bernard, Renaldo Bernier, Alex Blake, Matthew Boudreau, Denis Brewer, Judy Butler, Shari Campbell, Alastair Carlson, Laura Chakravarthula, Srinivasu Cirrincione, Pietro Conway, Vivienne Cooper, Michael Crutchfield, Elizabeth Deltour, Romain Dick, Wayne Ding, Chaohai Dirks, Kim Dixit, Shwetank Draffan, E.A. Duggin, Alistair Eggert, Eric Elledge, Michael Faulkner, Steve Ferraz, Reinaldo Fiers, Wilco Fischer, Detlev Foliot, John Garrish, Matt Garrison, Alistair Gower, Michael Guarino Reid, Loretta Hakkinen, Markku Haritos-Shea, Katie Henry, Shawn Hoffmann, Thomas Horton, Sarah Isager, Kasper Jensen, Tobias Christian Johansson, Stefan Johlic, Marc Johnson, Rick Jones, Crystal Joys Andersen, Wilhelm Kapoor, Shilpi Keim, Oliver Kirkpatrick, Andrew Kirkwood, John Kiss, Jason Kraft, Maureen Ku, JaEun Kurapati, Sujasree Lauke, Patrick Lauriat, Shawn Lee, Steve Lemon, Gez Li, Alex Li, Kepeng Li, Liangcheng Loiselle, Chris Lowney, Greg Lui, Edwina Lund, Adam Ma, Jia MacDonald, David Mace, Amanda Manser, Erich Martin, Debra McCormack, Scott McMeeking, Chris McSorley, Jan Milliken, Neil Montgomery, Rachael Mueller, Mary Jo nicole, windmann Niemann, Gundula Nurthen, James O Connor, Joshue Oh, Jeong-Hun Panchang, Sailesh Pandhi, Charu Pasi, Aparna Patch, Kimberly Philipp, Melanie Pluke, Mike Pouncey, Ian Repsher, Stephen Rochford, John Runyan, Marla Savva, Andreas Sawczyn, Steve Schnabel, Stefan Seeman-Kestenbaum, Lisa Sims, Glenda Singh, Avneesh Skotkjerra, Stein Erik Sloan, David Smith, Alan Smith, Jim Solomon, Adam Spellman, Jeanne F Strobbe, Christophe Suprock, Greg Swallow, David Thompson, Kenneth Thyme, Anne Ueki, Makoto Vaishnav, Jatin Vanderheiden, Gregg Venkata, Manoj Wahlbin, Kathleen Wang, Can WANG, WEI White, Jason Zelmanowicz, Erica Zerner, Adam Zhang, Mengni

Type: substantive editorial typo question general comment undefined

Resolution status:

Response drafted Resolution implemented Reply sent to commenter

Response status:

No response from Commenter yet Commenter approved disposition Commenter objected to disposition
Commenter's response (URI):

Comment:

Comment: WCAG 2.0 should put more emphasis on the importance of having a list of user agents that the content has been tested on. As pointed out in the comment #2, knowledge of which user agents can access that content is very important.

In Japan, our research [1] showed that Japanese major user agents were divided into two groups: JAWS and HPR can use structure markups and other important functions, while 95-Reader and PC-Talker can not. Most Japanese users do not know the benefits of skip navigation, heading navigation, table-structure navigation, or search text in a page because their user agents do not have these capabilities. (X)HTML is the basic technology which must be included in all baselines but major Japanese user agents cannot use some important accessibility functions of (X)HTML. Thus, we can say that baseline concept is too rough to show which technologies are accessible to users. Information of user agents is necessary to show that content is accessible to users.

In addition to that, user agents might be different among users with various disabilities. It may happen that the same content is accessible to users with cognitive disabilities but not accessible to visual disabilities.

We think conformance claims that include a list of user agents that have been tested on and a detail list of specific capabilities of those user agents is an ideal but we know it requires too much burden to the authors. Thus, we propose that WCAG 2.0 should put more emphasis on the importance of having a list of user agents that the content has been tested on.

[1] Watanabe, T. and Umegaki, M.
"Capability Survey of Japanese User Agents and Its Impact on Web Accessibility",
Proceedings of W4A 2006.
http://www.w4a.info/2006/prog/6-watanabe.pdf

Related issues: (space separated ids)

WG Notes: [TEAMA] [AL] Propose to partial accept with comment (pending better baseline document with added emphasize to list tested user agent, if any)--it is true, but user agent compatibility status with various technology changes frequently. WCAG is designed to outlive such status change. It is the responsibility of user agent provider to disclose the compatibility status. On the other hand, it is not possible for an author to claim conformance to a success criterion if no user agent would allow the content to meet the success criterion, assuming such criterion is user-agent-dependent. Discussed in the 19 April 2007 telecon: resolution: Issue 1220, Issue 1246, Issue 1272, Issue 1274, Issue 1314, Issue 1315 (1272 as amended) based on actions. http://www.w3.org/WAI/GL/2007/04/19-wai-wcag-minutes.html {partial accept}

Resolution: The conformance section of WCAG2 has been completely rewritten. The term "baseline" has been replaced by "accessibility-supported Web technologies". The issue of what it means to be an accessibility-supported Web technology is addressed in the section "Accessibility Support of Web Technologies" at http://www.w3.org/TR/2007/WD-WCAG20-20070517/#accessibility-support . WCAG describes the requirements for a technology to be an accessiblity-supported Web technology. Although the author is responsible for choosing accessibility-supported technologies, we recognize that extensive knowledge of the capabilities of user agents and assistive technologies is needed to make this choice. Since user agent and assistive technology support varies widely in different regions of the world, we encourage knowledgeable organizations to become respositories of this knowledge and make it available to authors so that they can make well-grounded choices.

(Please make sure the resolution is adapted for public consumption)