RE: SC for user agent dependence

We're already stating that different versions of the content that are offered dependent upon screen size must conform for the entire page to conform. It would be possible to add the condition that they must also provide equivalent content and functionality in order for the entire page to conform.

We've already addressed the issue of multiple versions based on screen size in a note; we can modify that proposal after August, if others agree with you that it needs clarifying. I think it would be unwise to give this issue further consideration prior to August given the heavy demands already placed on the working group by the proposals that need review.

From: Repsher, Stephen J [mailto:stephen.j.repsher@boeing.com]
Sent: Wednesday, July 26, 2017 3:43 PM
To: White, Jason J <jjwhite@ets.org>; w3c-wai-gl@w3.org
Subject: RE: SC for user agent dependence

Again, I'm not sure how since the requirement is for the content itself, and has nothing to do with a claimed conforming alternate.  Content requirements can't be conformance requirements.

Steve

From: White, Jason J [mailto:jjwhite@ets.org]
Sent: Wednesday, July 26, 2017 3:26 PM
To: Repsher, Stephen J <stephen.j.repsher@boeing.com<mailto:stephen.j.repsher@boeing.com>>; w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Subject: RE: SC for user agent dependence

I think you could modify the proposed note to clarify the issue. The language in the definition of "conforming alternate version" could be adapted, if necessary.

From: Repsher, Stephen J [mailto:stephen.j.repsher@boeing.com]
Sent: Wednesday, July 26, 2017 3:23 PM
To: White, Jason J <jjwhite@ets.org<mailto:jjwhite@ets.org>>; w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Subject: RE: SC for user agent dependence

Hi Jason,

I'm not referring to conforming alternates at all.  Just as with the note added, I'm referring to things like media queries which can change a page significantly based on screen size.  The note says that both the mobile version and the desktop version must conform, but only a success criteria can specify that I should be able to access the same content and functionality through each version.

Steve

From: White, Jason J [mailto:jjwhite@ets.org]
Sent: Wednesday, July 26, 2017 3:15 PM
To: Repsher, Stephen J <stephen.j.repsher@boeing.com<mailto:stephen.j.repsher@boeing.com>>; w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
Subject: RE: SC for user agent dependence



From: Repsher, Stephen J [mailto:stephen.j.repsher@boeing.com]
Sent: Wednesday, July 26, 2017 2:19 PM
To: w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>
I thought a little more about the recent CFC which passed to add a note to the "Full Page" conformance requirement.  I realized that we probably do need a success criterion in addition to this note in order to fully address user needs.

The issue fixed by the added note makes it clear that all versions of the page that have a programmatic dependence need to conform in order for the "full page" to conform.  However, what if those different versions have significantly different content or functionality?
[Jason] In that case, one version would not be a "conforming alternate version" of the other, since the definition of "conforming alternate version" (see the glossary) requires content and functional equivalence. This answer assumes, of course, that the two renderings of the page constitute two different versions of it for purposes of WCAG. If we need to clarify this further, and I'm not sure whether we do, I think it belongs in the Conformance section rather than in the success criteria.


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