Re: the discussion on how to measure conformance

Not only is RDF a good way to measure this kind of informtion, but there
already exists a scheme for doing so. My suggestion for using it is to
provide a link to external metadata in the page in question.

There is an example of how to use such a scheme (it is actually defined for
an authoring tool meeting ATAG, but the only changes that are required for a
simple version are to use WCAG checkpoints instead) at
http://www.w3.org/1999/11/11-WWW-Proposal/atagdemo but the scheme itself is
not defined anywhere. If people are interested, or i get time, that should be
fixed - at the very least by putting a document at the namespace referred
to. for the conformance scheme.

Note also that there is a checkpoint in WCAG - 13.2 says "Provide metadata to
add semantic information to pages and sites". We could probably be a bit more
specific about what that means, but providing this kind of metadata might be
a good technique.

cheers

Charles


On Sun, 22 Oct 2000, Kynn Bartlett wrote:

  Claus -- very good points.  I especially like the idea of asking for
  whose benefit the logos are meant.
  
  A good way to do this would be to design our WCAG guidelines specifically
  for use as not only a "logo" (which is really the crudest form of
  compliance) but also as a detailed RDF statement.
  
  RDF -- for those of you who aren't familiar with it -- is basically
  like meta tags on steroids.  They're a way of conveying meta information
  (information about information) using a standardized markup scheme
  which supports a variety of vocubularies.
  
  Using RDF, a site (or a page) could be labeled with a specific,
  detailed compliance rating.  This could be read by the browser and
  information passed along to the user as appropriate -- for example,
  doing a query when hitting a site to determine if it is accessible
  to the user's needs.
  
  Additionally, the RDF itself could be converted to something visual
  using XSLT (since it's just an XML-derived language), and there is
  no reason that a textual or logo compliance claim could co-exist
  with an RDF compliance claim.
  
  --Kynn
  
  PS:  I think William likes RDF.  I just get that feeling.
  

-- 
Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134 136
W3C Web Accessibility Initiative                      http://www.w3.org/WAI
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053, Australia
September - November 2000: 
W3C INRIA, 2004 Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, France

Received on Monday, 23 October 2000 04:01:25 UTC