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RE: Proposal to fix (persistent) problem with priority of check point 6.1

From: Hansen, Eric <ehansen@ets.org>
Date: Thu, 28 Sep 2000 10:02:30 -0400
To: "'Jon Gunderson'" <jongund@ux1.cso.uiuc.edu>, Ian Jacobs <ij@w3.org>, w3c-wai-ua@w3.org
Message-id: <B49B36B1086DD41187DC000077893CFB8B43C4@rosnt46.ets.org>
In order to comment on the adequacy of this change, I need a little
clarification.

Is it correct that the document and recent working group agreements do _not_
require writing data back to the DOM? We allow user agents to make whatever
repair they do _during load_ without being impinged upon by our guidelines.
We have had a lot of discussion about repair functions (and even more may be
due), but is it correct that we have not agreed to any post-load repair
function that writes back to the DOM?

I do want to submit the idea that if we do require post-load repair that
writes to the DOM, then those actions constitute authoring, making the user
agent an authoring tool and therefore making the ATAG 1.0 document relevant.


However, if that occurs, I can't see all of ATAG (especially all three
priority levels) being relevant. I can see all three levels of WCAG 1.0 as
being relevant for 6.1

With this caveat, the change seems OK.

> -----Original Message-----
> From: Jon Gunderson [mailto:jongund@ux1.cso.uiuc.edu]
> Sent: Thursday, September 28, 2000 9:21 AM
> To: Ian Jacobs; w3c-wai-ua@w3.org
> Subject: Re: Proposal to fix (persistent) problem with priority of
> checkpoint 6.1
> 
> 
> Ian,
> The change seems reasonable to me.
> 
> Jon
> 
> 
> At 07:13 AM 9/28/2000 -0400, Ian Jacobs wrote:
> >Hello,
> >
> >In the 1 September UAAG 1.0 [1], checkpoint 6.1 is P1 and reads:
> >
> >   Implement the accessibility features of all supported 
> specifications
> >   (markup languages, style sheet languages, metadata languages,
> >   graphics formats, etc.). Accessibility features are those 
> identified
> >   in the specification and those features of the specification
> >   that support requirements of the "Web Content Accessibility
> >   Guidelines 1.0" [WCAG10], the "Authoring Tool Accessibility
> >   Guidelines 1.0" [ATAG10], and the current document. [Priority 1]
> >
> >The issue of whether this checkpoint should have a relative priority
> >has already been raised (number 111 [2]), and at the Princeton
> >face-to-face, we resolved to leave it a P1 checkpoint [3]. Eric
> >has recently broached the topic again [4], asking:
> >
> >    "Is it a Priority 1 UAAG requirement to ensure that
> >     features that support all three_ WCAG and ATAG priority
> >     levels are implemented?"
> >
> >In fact, I see a bug in the UAAG 1.0 spec since it refers
> >at a P1 level to "those features of the specifcation that support
> >the requirements of ... the current document") and not all
> >the requirements are P1.
> >
> >If I recall, the strongest argument against a relative priority
> >for this checkpoint was that even if a requirement is P3 in WCAG,
> >it is important for user agents to implement such features, otherwise
> >there is no pressure to provide the support author's need. I believe
> >the same argument may be made for ATAG requirements that refer to
> >content, but not necessarily those that refer to user interface.
> >
> >PROPOSED FIX:
> >
> >   - Delete "and the current document" from 6.1. Thus, to conform
> >     to this document, you must satisfy the checkpoints of 
> this document
> >     and relevant requirements of other documents at a P1 level
> >
> >   - Delete the reference to ATAG 1.0 (since content requirements
> >     covered by WCAG and  user interface requirements 
> covered by UAAG).
> >
> >   - Clearly state that we mean *all* requirements of WCAG 
> 1.0 (P1, P2,
> >and P3).
> >
> ><NEW>
> >   Implement the accessibility features of all supported 
> specifications
> >   (markup languages, style sheet languages, metadata languages,
> >   graphics formats, etc.). Accessibility features are those 
> identified
> >   in the specification and those features of the specification
> >   that support requirements of the "Web Content Accessibility
> >   Guidelines 1.0" [WCAG10] [Priority 1]
> ></NEW>
> >
> >  - Ian
> >
> >[1] http://www.w3.org/WAI/UA/WD-UAAG10-20000901/
> >[2] http://server.rehab.uiuc.edu/ua-issues/issues-linear.html#111
> >[3] http://www.w3.org/WAI/UA/1999/12/ftf-19991210#issue-111
> >[4] 
> http://lists.w3.org/Archives/Public/w3c-wai-ua/2000JulSep/0397.html
> >
> >--
> >Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
> >Tel:                         +1 831 457-2842
> >Cell:                        +1 917 450-8783
> 
> Jon Gunderson, Ph.D., ATP
> Coordinator of Assistive Communication and Information Technology
> Division of Rehabilitation - Education Services
> MC-574
> College of Applied Life Studies
> University of Illinois at Urbana/Champaign
> 1207 S. Oak Street, Champaign, IL  61820
> 
> Voice: (217) 244-5870
> Fax: (217) 333-0248
> 
> E-mail: jongund@uiuc.edu
> 
> WWW: http://www.staff.uiuc.edu/~jongund
> WWW: http://www.w3.org/wai/ua
> 
> 
Received on Thursday, 28 September 2000 10:06:17 GMT

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