- From: John M Slatin <john_slatin@austin.utexas.edu>
- Date: Tue, 7 Jun 2005 09:24:17 -0500
- To: <w3c-wai-gl@w3.org>
Last week Alex and I took an action to meet and discuss the issues Alex had raised concerning the requirement(s) to identify natural language and language changes within the delivery unit. We didn't reach resolution in our conversation yesterday, but I think we came to a clearer understanding of the problem. Here's a scenario: A delivery unit displays information about a customer. The information was provided by the customer, who filled out a form in a different delivery unit. The delivery units that contain the form and display the customer information are in French. However, the customer entered her information in German. The form did not allow the customer to tag the language of her entries. As a result, the language change is not marked up on the page that displays the customer information. The company that owns the Web site is located in a country that requires conformance at Level 2. Does the page conform to GL 3.1? 1. The primary natural language of both delivery units is identified in markup. Both delivery units satisfy L1 SC1. 2. Language changes in the content are not identified in markup. The content fails L2 SC2. Since the site is legally obligated to conform at L2, there is a problem. During the time we had available, Alex and I got as far as agreeing that situations like this are instances of the larger and still unresolved problem of how to handle content contributed by authors who are not affiliated with or otherwise controlled by the individual or organization that owns the site. The current internal/editor's draft contains the following Editor's note about this (the wording of the note was agreed at the July 2004 f2f in Redwood Shores [1]): <blockquote cite="http://www.w3.org/WAI/GL/WCAG20/"> Editor's Note #2: We are currently looking at how to handle unknown or community-contributed, authored units that are created using an aggregator supplied tool. If the aggregator-supplied tool conforms to ATAG, can ATAG conformance be used to imply that the aggregated content conforms to WCAG? </blockquote> Similar problems might be faced by Weblogs that support commenting if the commenting feature doesn't accept markup and/or blogging tools that make it difficult/impossible to provide text alternatives, etc.; WIKIs; Web-based forums and newsgroups; email archives like this one, which strips out any markup that authors might choose to include; etc. The question is how far we feel we can go in requiring the authoring components of such systems to support and/or require accessible content-- and if we can draw a line between the site's responsibility to support accessible authoring and the author's responsibility to practice it-- a line that doesn't turn into a loophole that allows the site owners to throw up their hands and say "We don't create the content, we just pass it along." It seems to me (haven't talked about this with Alex yet) that some manifestations of the problem could be solved by conformance-scoping. For example, in the scenario I opened with, pages that display customer information could be scoped out of the conformance claim with the disclaimer that all aspects of the page that are within the company's control conform but the company doesn't take responsibility for content produced by people they don't employ (or something like that). That might or might not work in the legal environment where the company operates, but I think it would work within our current thinking about conformance. Of course, if it's a big transnational company that has all sorts of neural nets, etc., analyzing incoming mail, etc., it might well have the resources to do some automatic language recognition and then generate the appropriate markup. Other suggestions welcome for how to address either the particular case described above or the more general issue of community-contributed content. John [1] http://lists.w3.org/Archives/Public/w3c-wai-gl/2004JulSep/0128#start "Good design is accessible design." John Slatin, Ph.D. Director, Accessibility Institute University of Texas at Austin FAC 248C 1 University Station G9600 Austin, TX 78712 ph 512-495-4288, f 512-495-4524 email jslatin@mail.utexas.edu web http://www.utexas.edu/research/accessibility/
Received on Tuesday, 7 June 2005 14:24:25 UTC