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Re: Call for Review: HTML5 Image Description Extension (longdesc) Last Call

From: Matthew Turvey <mcturvey@gmail.com>
Date: Tue, 16 Jul 2013 19:19:40 +0100
Message-ID: <CAFp5+AoJNstwEjf2QTbb5L7kMrJ_9G2k+yWbkXU3mOHs8maEJA@mail.gmail.com>
To: HTML Accessibility Task Force <public-html-a11y@w3.org>
Cc: Jeanne Spellman <jeanne@w3.org>, "Richards, Jan" <jrichards@ocadu.ca>
On 16 July 2013 18:40, James Craig <jcraig@apple.com> wrote:
> 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.

I'd also add:

5. @longdesc is inappropriate when a normal link is sufficient. Example:

<a href="descrip"><img src="pic" alt="*the purpose of the link*"></a>

-Matt
Received on Tuesday, 16 July 2013 18:20:07 UTC

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