- From: Jason White <jasonw@ariel.ucs.unimelb.edu.au>
- Date: Wed, 7 Aug 2002 21:16:31 +1000
- To: GV@TRACE.WISC.EDU
- Cc: w3c-wai-gl@w3.org
I think Gregg's summary is an accurate description of how we have made decisions in the past, and how they should be made in the future. I still think, after we have agreed on these (or similar) principles, we should write them up and include a summary in the guidelines document itself so that readers can gain a greater understanding of what success criteria are, and how the conformance levels are defined. By doing so, we reduce (but, realistically, cannot eliminate) the risk that the docment will be inadvertently misused by those who are unaware of the rationale underlying the definitions of success criteria and conformance levels. That is, the guidelines document should be clear in itself as to how the success criteria and conformance levels are defined; a reader should not have to search for our requirements document to obtain this degree of insight (though naturally, the requirements document will elaborate our thinking to a far greater extent than any rationale set forth in the guidelines). Instead of a "level 4", we could simply head the level "advice", as that is what it is. In that case, we could easily refer to it in success criteria, as in: The content has been reviewed, taking into account the advice under this checkpoint, and is believed to be... where "advice" is a link to the corresponding advice section for the particular checkpoint. which is what we originally intended to provide for in our assurance requirements (see my earlier message on the subject). As Gregg pointed out, the "advice" then becomes part of the requirement in as much as it has to be taken into consideration in conducting the review required by the level 2 success criteria. As Gregg also said, with this approach, the advice can't easily be omitted from checklists. Thus my proposal is: Call the "advisory" section "advice"; explain its purpose in the introduction. Explain, in the introduction or an appendix, the rationale behind the success criteria and conformance levels. One more proposal and I shall finish for the night: for the purpose of facilitating transitions, we should document precisely what conformance claims under WCAG 2.0 can be made in respect of content that meets levels A, double-A and tripple-A of WCAG 1.0, including the "required" technologies/features list as per checkpoint 5.2. This should make it easy for developers who have already conformed to WCAG 1.0 at some level, to make a corresponding claim on WCAG 2.0, and to know which additional requirements they will have to meet in order to conform to WCAG 2.0 at a higher level.
Received on Wednesday, 7 August 2002 07:16:45 UTC