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RE: "Accessibility supported" definition

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Tue, 22 May 2007 22:13:50 -0500
To: "'Roberto Ellero'" <r.ellero@webprofession.com>, <w3c-wai-gl@w3.org>
Message-ID: <004101c79ce8$6553b980$1725c44b@NC84301>

Thanks Roberto,

Actually, the text you highlight below is not the definition of
Accessibility Supported.   It is the rules for Web Content technologies that
are accessibility supported.

However, the definition of Accessibility supported (below) DOES contain
'user agent' so saying " ACCESSIBILITY SUPPORTED user agents" does sound
circular.

We'll have to fix it.

accessibility supported

    supported by users' assistive technologies as well as the accessibility
features in browsers and other user agents

    Note: When a Web Technology is "accessibility supported," it does not
imply that the entire technology must be supported. Most technologies lack
support for at least one feature. When referring to "accessibility support"
for a technology, the support for specific aspects, features, and extensions
should be cited if the technology as a whole is not accessibility supported.
A profile of a technology may be used to give a name to the set of aspects,
features, or extensions of a technology that are "accessibility supported."




Maybe we should make it

accessibility supported

    supported by users' assistive technologies.  When applied to content
technologies it means supported by users' assistive technologies as well as
the accessibility features in browsers and other user agents.





Gregg
 -- ------------------------------
Gregg C Vanderheiden Ph.D.



> -----Original Message-----
> From: w3c-wai-gl-request@w3.org
> [mailto:w3c-wai-gl-request@w3.org] On Behalf Of Roberto Ellero
> Sent: Tuesday, May 22, 2007 11:00 AM
> To: w3c-wai-gl@w3.org
> Subject: "Accessibility supported" definition
>
>
> Hi,
> I have received a feedback by Michele Diodati
> (www.diodati.org), which appreciates the concept of
> "Accessibility Support" instead of Baseline. Diodati thinks
> that the definition of ACCESSIBILITY SUPPORTED TECHNOLOGY
> (http://www.w3.org/WAI/GL/WCAG20/#accessibility-support) is
> not very intelligible.
> Furthermore, point 2: "The Web technology must have
> accessibility-supported user agents that are available to users"
> begs the question, and actually the definition contains the
> term to define, see the uppercase text:
>
> 2. The Web technology must have ACCESSIBILITY SUPPORTED user
> agents that are available to users.
>       This means that at least one of the following is true:
>          1. The technology is supported natively in
> widely-distributed user agents that are also ACCESSIBILITY
> SUPPORTED (such as HTML and CSS); OR
>          2. The technology is supported in a
> widely-distributed plug-in that is also ACCESSIBILITY SUPPORTED; OR
>          3. The content is available in a closed environment,
> such as a university or corporate network, where the user
> agent required by the technology and used by the organization
> is also ACCESSIBILITY SUPPORTED; OR
>          4. The user agent(s) that support the technology are
> also ACCESSIBILITY SUPPORTED and available for download or
> purchase in a way that does not disadvantage people with disabilities.
>
>
> The point 2 says that the Web technology must be supported by
> user agents with support for the accessibility. But the point
> 1 is about assistive technologies, which are user agents
> themselves. So the point
> 2 does not create a true distinction with the point 1.
>
> In Diodati's opinion, the definition of "accessibility supported"
> which is abover in the document (when the new terms of WCAG 2.0 are
> introduced) is much more clear and synthetic: "Accessibility
> supported means supported by users' assistive technologies as
> well as the accessibility features in browsers and other user agents".
>
> I think that it is shareable to consider that there are two problems
> therefore: the definition intelligibility, and the confusion
> between technologies which support and that are supported in
> relation to accessibility.
>
> Best regards,
> Roberto Ellero
>
>
>
Received on Wednesday, 23 May 2007 03:14:06 GMT

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