What does "supported by accessible user agents" mean?

While trying to read WCAG 2.0 to see if I had any remarks on it I came 
accross the sentence "It is possible to conform to WCAG 2.0 using both W3C 
and non-W3C technologies, as long as they are supported by accessible user 
agents"[1].
What exactly does "supported" mean here? Does it mean that the user agent 
is conforming according to the conformance criterea of the respective 
technology? Because if that is the case WCAG 2.0 would be quite useless 
taken into account that most software does not have fully conforming 
implementations.
[1]<http://www.w3.org/TR/2005/WD-WCAG20-20051123/intro.html#N10208>
-- 
Anne van Kesteren
<http://annevankesteren.nl/>
<http://www.opera.com/>

Received on Sunday, 27 November 2005 16:10:37 UTC

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