Edit comment LC-2787 for HTML Accessibility Task Force

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Comment LC-2787

Comment Shortname:

Commenter: James Craig <jcraig@apple.com>

Message-id:

Section of the document concerned:

[Free text description]Document as a wholeHTML5 Image Description Extension Abstract This specification defines a longdesc attribute to... Status of This Document This section describes the status o... Table of Contents Introduction 1. Conformance 1.1 Depende... Introduction HTML 4 provided a longdesc attribute for the i... 1. Conformance As well as sections marked as non-normative,... 1.1 Dependencies and definitions The IDL fragments in this... 2. Use Cases and Requirements There are many ways users can... Use Cases Requirements for an Image Description functionality 3. The longdesc attribute 3.0 Implementation 3.0.1 Authors... 3.0 Implementation 3.0.1 Authors and Conformance checkers Zero or one longdesc attributes may be added to any img ele... 3.0.2 Authors 3.0.3 User Agents 3.1 Extension to the HTMLImageElement interface partial in... partial interface HTMLImageElement { attribute... 3.1.1 Attribute longdesc of type DOMString The longdesc I... longdesc of type DOMString longdesc A. Acknowledgements Thanks to the HTML Working Group of the... B. References B.1 Normative references [HTML5] Robin Berj... B.1 Normative references [HTML5] Robin Berjon et. al., eds... [HTML5] [RFC2119] [WEBIDL] B.2 Informative references [ATAGB3] Jutta Treviranus et. a... [ATAGB3] [WCAG] [UAAG] C. Change History (This section is not normative) Since the...
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Refinement of the section concerned:

Status:

open proposal pending resolved_yes resolved_no resolved_partial other assigned to Nobody Allan, Jim Bolter, David Brewer, Judy Cain, Sally Cooper, Michael Cotton, Paul Diggs, Joanmarie EVAIN, Jean-Pierre Faulkner, Steve Foliot, John Hickson, Ian Kardell, Brian Kiss, Jason Kobayashi, Masatomo Le Hégaret, Philippe Lund, Bob MacDonald, David Mann, Jatinder McCathie Nevile, Charles O'Connor, Joseph Karr Quin, Liam Ruby, Sam Schnabel, Stefan Taylor, Suzanne Watson, Mark

Type: substantive editorial typo question general comment undefined

Comment:

I have an additional suggestion that I believe would help the acceptance of this document within the general working group. Add an informative section detailing several of the many cases where it is inappropriate to use @longdesc. For example…

1. @longdesc is inappropriate when an EPUB footnote is sufficient.
2. @longdesc is inappropriate for Math. Use MathML instead.
3. @longdesc is inappropriate for SVG graphics. Make the SVG DOM accessible instead.
4. @longdesc is inappropriate for graphics of tabular data. Use an accessible table instead.

More examples at http://cookiecrook.com/longdesc/

These should probably be added to the WCAG 2.0 Techniques documents as well.

Related issues: (space separated ids)

WG Notes:

Resolution:

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