DRAFT analysis of fallback mechanisms for embedded content ACTION-66

The attached file is a draft analysis of how fallback mechanisms are
applied to various types of embedded content in HTML. The analysis is an
important step towards determining where the support provided by the
HTML specification needs to be extended or modified to ensure all
accessibility use cases are covered. The analysis is prepared primarily
by Michael Cooper, with input from members of the Bug Triage sub-team of
the HTML Accessibility Task Force.

This is a draft analyis put forth for discussion and should not be
viewed as complete, final, or constituting a proposal in itself.

This analysis relates to Bug 8885
<http://www.w3.org/Bugs/Public/show_bug.cgi?id=8885> and executes
ACTION-66 <http://www.w3.org/WAI/PF/HTML/track/actions/66>. As discussed
on 5 November 2010
<http://www.w3.org/2010/11/04-html-wg-minutes#item13>, preliminary work
on this was done by the bug triage sub-team on 16 November 2010
<http://www.w3.org/2010/11/16-a11y-bugs-minutes#item01> and 22 November
2010 <http://www.w3.org/2010/11/23-a11y-bugs-minutes#item02>, and it is
now being taken to the task force for wider review and discussion.

Michael
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Michael Cooper
Web Accessibility Specialist
World Wide Web Consortium, Web Accessibility Initiative
E-mail cooper@w3.org <mailto:cooper@w3.org>
Information Page <http://www.w3.org/People/cooper/>