Re: ATAG2 B.2.4 Assist authors to manage, edit, and reuse equivalent alternatives for non-text objects.

I'd like to tweak my previous B.2.4 proposal. Changes include:
- folding audio/image processing into B.2.4.1
- B.2.4.2 to explain why filename is not appropriate

B.2.4.1 Author control: If the authoring tool suggests alternatives for 
author-supplied non-text objects (e.g., a previous author entry, an 
associated description in a clip art library, image/audio analysis), 
provide authors with the opportunity to accept, modify, or reject the 
alternatives, prior to insertion. (Level A)

B.2.4.2 Let user agents repair: Avoid automatically generating 
alternatives using textual information that is equally available to user 
agents (e.g., from the filename, from metadata in an image). (Level A)

B.2.4.3 Special Values: Follow any recommendations on special values in 
alternatives (e.g., HTML4 alt="" has a different meaning than no alt 
attribute). (Level A)

B.2.4.4 Save for Reuse: Provide authors with the option of having
any *recognized* plain text alternatives that they enter (e.g.,
alternative text labels, long text descriptions) stored for future reuse 
  (Level AA).

Applicability Note:
- This guideline does not apply to non-text objects that are
automatically added by the authoring tool. These are covered by
Guideline B.1.3.


Cheers,
Jan



Previous rewording attempt:

http://lists.w3.org/Archives/Public/w3c-wai-au/2008OctDec/0040.html

-- 
Jan Richards, M.Sc.
User Interface Design Lead
Adaptive Technology Resource Centre (ATRC)
Faculty of Information (i-school)
University of Toronto

   Email: jan.richards@utoronto.ca
   Web:   http://jan.atrc.utoronto.ca
   Phone: 416-946-7060
   Fax:   416-971-2896

Received on Monday, 15 December 2008 18:58:40 UTC