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Re: SC 1.3.2, 2.4.3: Visual Order vs Focus/Reading Order

From: Loretta Guarino Reid <lorettaguarino@google.com>
Date: Fri, 20 Nov 2009 15:28:18 -0800
Message-ID: <824e742c0911201528l7bbcd8e7k231b5f68954618c3@mail.gmail.com>
To: Makoto Ueki <makoto.ueki@gmail.com>
Cc: public-comments-wcag20@w3.org
On Thu, Oct 15, 2009 at 1:39 AM,  <makoto.ueki@gmail.com> wrote:
>
> Name: Makoto Ueki
> Email: makoto.ueki@gmail.com
> Affiliation: Infoaxia, Inc.
> Document: UW
> Item Number: Understanding Success Criterion 2.4.3
> Part of Item: Sufficient Techniques
> Comment Type: question
> Summary of Issue: SC 1.3.2, 2.4.3:  Visual Order vs Focus/Reading Order
> Comment (Including rationale for any proposed change):
> If focus/reading order don't match the visual order, will it fail these SC?
>
>
>
> Visual Order:
>
> Section A, B, C, D
>
>
>
> Focus/Reading Order(DOM order):
>
> Section A, C, B, D or C, A, B, D etc.
>
>
>
> For example, a web page has main content on the left side and a group of links on the right side. The visual order would be 1)main content and then 2)group of links. If focus(or reading) order is 1)group of links and then 2)main content, will it be a failure for this SC? In this case, the DOM order doesn't match the visual order.
>
>
>
> Another example would be a web page which has navigation bar in the header section and main content below the navigation bar. In this case, main content may comes first and then navigation bar may comes next in its focus/reading order when positioning them by using CSS.
>
>
>
> These cases don't change meaning of content within each section. But its focus/reading order(DOM order) doesn't match the visual order. It may confuse sighted users who are using only keyboard.
>
>
>
> They can't be "true" in "Expected Results" when they are tested by C27 which is one of Sufficient Techniques for both SC.
>
>
>
> Would these cases fail both SC 1.3.2 and 2.4.3?
>
> Proposed Change:
>
>
>

================================
Response from the Working Group
================================
Thank you for your query.

In both examples the meaning of the content would not be affected if
the order of the sections was changed. This means that these examples
do not fail SC 1.3.2 or 2.4.3 even though the visual order may not
match the DOM order.

C27 is only one technique that can be used to meet the success
criteria. Not using C27 is not a failure. The success criteria can be
met with other techniques.

Loretta Guarino Reid, WCAG WG Co-Chair
Gregg Vanderheiden, WCAG WG Co-Chair
Michael Cooper, WCAG WG Staff Contact


On behalf of the WCAG Working Group
Received on Friday, 20 November 2009 23:28:49 UTC

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