W3C home > Mailing lists > Public > w3c-wai-gl@w3.org > January to March 2007

RE: SC 2.1.1 and server-side image maps

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Thu, 8 Feb 2007 19:04:01 -0600
To: "'Christophe Strobbe'" <christophe.strobbe@esat.kuleuven.be>, <w3c-wai-gl@w3.org>
Message-ID: <016c01c74be6$31001a00$ad5bc44b@NC84301>

Content always applies to the Web Page, not to individual parts of it.

The SC apply to Web pages.

CS image maps are not mentioned because we don't have specific requirements
for them.  We could include some examples to show some ways of handling our
requirements but we don't have a way that you must use.

Does this clear your question?


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 Christophe Strobbe
> Sent: Thursday, February 08, 2007 3:01 PM
> To: w3c-wai-gl@w3.org
> Subject: SC 2.1.1 and server-side image maps
>
>
> Hi,
>
> During the review of certain WCAG 2.0 test cases in the BenToWeb
> project, we ran into the following issue.
> Success criterion 2.1.1 requires: "All functionality of the content
> is operable in a non-time-dependent manner through a keyboard
> interface, except where the task requires analog, time-dependent input."
> Appendix D of WCAG 2.0 (Comparison of WCAG 1.0 checkpoints to WCAG
> 2.0 - non-normative) maps WCAG 1.0 checkpoint 1.2 to several WCAG 2.0
> success criteria. Checkpoint 1.2 reads: "Provide redundant text links
> for each active region of a server-side image map." With regard to
> keyboard access, the checkpoint is mapped to success criterion 2.1.1,
> but it is not clear whether providing redundant text links is
> sufficient: if "content" (as in "All functionality of the
> content...") is interpreted as confined to the image map itself,
> server-side image maps always fail SC 2.1.1 and an alternative needs
> to be provided to meet SC 4.2.1, but if "content" is interpreted as
> the web page containing the image map, then redundant text links in
> the same web page would meet SC 2.2.1 and it would not be necessary
> to fall back on SC 4.2.1. However, client-side image maps are not
> mentioned in Understanding WCAG 2.0, nor in Techniques for WCAG 2.0.
> The June 2005 version of HTML Techniques for WCAG 2.0 contained a
> technique called "Text links for server-side image maps"[1] (for
> success criterion 2.4 L 1 SC 1), but it is not entirely clear if this
> would now be considered as a technique for SC 2.1.1 or for SC 4.2.1.
>
> [1]
> http://www.w3.org/TR/2005/WD-WCAG20-HTML-TECHS-
> 20050630/Overview.html#ssim_textlinks
>
> Best regards,
>
> Christophe
>
>
> --
> Christophe Strobbe
> K.U.Leuven - Departement of Electrical Engineering - Research Group
> on Document Architectures
> Kasteelpark Arenberg 10 - 3001 Leuven-Heverlee - BELGIUM
> tel: +32 16 32 85 51
> http://www.docarch.be/
>
>
> Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
>
Received on Friday, 9 February 2007 01:04:20 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:47:49 GMT