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Feedback on verbose descriptor requirements

From: Richards, Jan <jrichards@ocad.ca>
Date: Thu, 9 Sep 2010 14:21:02 -0400
To: "Gregory J. Rosmaita" <oedipus@hicom.net>
CC: "w3c-wai-ua@w3.org" <w3c-wai-ua@w3.org>
Message-ID: <F2C77FB59A1A4840A01EF5F59B1826E20A21DC1C66@ocadmail.ocad.ca>
Hi Gregory,

Sorry, but my minor tweaks of the requirements (at http://www.w3.org/WAI/PF/HTML/wiki/Verbose_desc_reqs) got carried away. What do you think?

1. Format requirement: A programmatic mechanism to reference a specific set of structured content (e.g., text, table, etc.) as a verbose descriptor to non-text content.

2. Format requirement: The verbose descriptor should be able to be stored internal (enhanced describedby model) or external (HTML4 longdesc model) to the document containing the described non-text content.

3. Format requirement: The mechanism should clearly define the start and end of the verbose description in case it is part of a larger document.

4. UA requirement: User option to indicate programmatically (e.g. via an AT) that a piece of non-text content has a verbose descriptor.

5. UA requirement: User option to indicate in the viewport (e.g. visually in a standard browser, aurally in an aural browser) that a piece of non-text content has a verbose descriptor.

6. UA requirement: Verbose descriptor must be available programmatically (e.g., via accessibility API to AT).

7. UA requirement: User option to display verbose descriptor and non-text content together (e.g., in the same viewport).

8. UA requirement: User option to display verbose descriptor separately (e.g., open in a new viewport). 

9. UA requirement: User must be able to return easily from the verbose description (whether internal, external, etc.) to the described non-text content.

Cheers,
Jan

-- 
(Mr) Jan Richards, M.Sc.
jrichards@ocad.ca | 416-977-6000 ext. 3957 | fax: 416-977-9844
Inclusive Design Research Centre (IDRC) | http://inclusivedesign.ca/
Faculty of Design | OCAD University
Received on Thursday, 9 September 2010 18:21:33 GMT

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