Interaction/Coordination

Some References:

1. See for DOM concerns, with a table indicating year of DOM requirement.

"What does your user agent claim to support?"

     http://www.w3.org/2003/02/06-dom-support.html

2. XML application development accessibility guidelines are important,
as new schemas/DTDs may ignore accessibility, and the user agents
that may be expected to extract meaning from documents.

"XML Accessibility Guidelines W3C Working Draft 3 October 2002"

     http://www.w3.org/TR/xmlgl

3. The work progressing in the new "Web Content Accessibility Guidelines 2.0"
seems to have significant impact on the UA-guidelines, and the UA test 
suite items may need some refocusing.

     http://www.w3.org/TR/WCAG20/

Regards/Harvey Bingham