AUWG Action: Proposal on B.1.2.4 Notification Prior to Deletion

Goals:
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Satisfy as many comments a possible on B.1.2.1, B.1.2.2, B.1.2.3, B.1.2.4.
(http://lists.w3.org/Archives/Public/w3c-wai-au/2010JulSep/att-0094/atag20-8Jul10LC-comments-rev10.html)
- avoid repetition since preserving during transformation is already covered in B.1.2.1 and B.1.2.2.
- take into account copy-paste functions


Proposed wording:
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*B.1.2.1 Transformations Preserve Accessibility Information (Minimum):* If the authoring tool provides web content transformations then one of the following are true:
(a) *Preserve*: accessibility information required to meet WCAG 2.0 success criteria is preserved in the output;
(b) *Warning:* authors are warned that proceeding may cause the loss of information needed for accessibility (e.g., when saving a structured graphic to a raster image format),

The WCAG 2.0 Level A success criteria are met (Level A); or 
The WCAG 2.0 Level A and Level AA success criteria are met (Level AA); or 
The WCAG 2.0 Level A, Level AA, and Level AAA success criteria are met (Level AAA).

Note: Transformations includes markup "clean-up".

B.1.2.2 Transformations Preserve Accessibility Information (Enhanced): If the authoring tool provides web content transformations then any accessibility information required to meet WCAG 2.0 is preserved as accessibility information in the output, if allowed by the web content technology of the output. (Level AAA)


Current wording:
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B.1.2.1 Preserve Accessibility Information (Minimum): Any accessibility information (WCAG 2.0 Level A) recognized in the input to any web content transformation is preserved as accessibility information in the output, if allowed by the web content technology of the output.

B.1.2.2 End Product Cannot Preserve Accessibility Information: If the web content technology of the output of a web content transformation cannot preserve recognized accessibility information (WCAG 2.0 Level A) (e.g., saving a structured graphic to a raster image format), then at least one of the following are true:
(a) Option to Save: Authors have the option to save the accessibility information in another way (e.g., as a "comment", as a backup copy of the input); or 
(b) Warning: Authors are warned that this will result in web content accessibility problems in the output.

B.1.2.3 Preserve Accessibility Information (Enhanced): Any accessibility information (up to WCAG 2.0 Level AAA) recognized in the input to any web content transformation is preserved as accessibility information in the output.

B.1.2.4 Notification Prior to Deletion: If the authoring tool automatically deletes any author-generated content for any reason, then at least one of the following is true: 
(a) Preserve Accessibility Information: The authoring tool only automatically deletes web content that it can detect is not accessibility information; or 
(b) Notification Option: Authors have the option to receive notification before deletion; or 
(c) No Deletion Option: Authors have the option to prevent automatic deletion by the authoring tool.





-- 
(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 Monday, 20 September 2010 19:53:59 UTC