Edit comment LC-537 for Accessibility Guidelines Working Group

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Comment LC-537

Comment Shortname:

Commenter: Greg Gay <g.gay@utoronto.ca> on behalf of ATRC UofT

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:

Item Number: Success Criterion 1.4.1
Part of Item:
Comment Type: GE
Comment (Including rationale for any proposed change):

Guideline 1.4

Luminosity Contrast Ratio in its current form appears to be a less than perfect measure of contrast. For example black text on a white background is more readable than white text on a black background, yet both have the same ratio. In the future as the algorithms for measuring contrast become better, the suggested 5:1 ratio in 1.4.1, may no longer be valid.

Proposed Change:

A general statement should be made in the guideline, something like ...use foreground and background colours that provide sufficient contrast...", and move LCR and the suggested ratio to the techniques document, where it can be adjusted as measure of contrast become better defined.

Related issues: (space separated ids)

WG Notes: [TEAMA] Submitted by Team A 5/23/06 RESOLVED at WG Telcon 5/25/06 {not accept}

Resolution: The change you propose would make the success criteria untestable. All success criteria need to be testable to qualify. So we need to provide specific description of what 'sufficient contrast' is.

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