W3C home > Mailing lists > Public > wai-xtech@w3.org > May 2008

Re: [html4all] HTML5 Alternative Text, and Authoring Tools

From: Christophe Strobbe <christophe.strobbe@esat.kuleuven.be>
Date: Thu, 15 May 2008 15:29:44 +0200
Message-Id: <6.2.5.6.2.20080515150851.024668f0@esat.kuleuven.be>
To: W3C WAI-XTECH <wai-xtech@w3.org>


At 21:31 14/05/2008, Henri Sivonen wrote:

>On May 14, 2008, at 21:02, Matt Morgan-May wrote:
>>(...)
>>Bogus alt text is covered under WCAG, anyway.
>
>I'm having trouble finding the right part of WCAG.

Easy: in success criterion 1.1.1 of WCAG 2.0:
"All non-text content that is presented to the user has a text 
alternative that serves the equivalent purpose, except for the 
situations listed below." 
<http://www.w3.org/TR/2008/CR-WCAG20-20080430/#text-equiv-all>
Bogus alt does not meet this criterion.

Via "Understanding Success Criterion 1.1.1"
<http://www.w3.org/TR/2008/WD-UNDERSTANDING-WCAG20-20080430/text-equiv-all.html>
one can also find Failure F30: "Failure of Success Criterion 1.1.1 
and 1.2.1 due to using text alternatives that are not alternatives 
(e.g. filenames or placeholder text)"
<http://www.w3.org/TR/2008/WD-WCAG20-TECHS-20080430/F30.html>, which 
covers a very common type of bogus alt.


"Bogus alt" wouldn't constitute an "equivalent" according to WCAG 1.0.

Best regards,

Christophe Strobbe


---
Please don't invite me to LinkedIn, Facebook, Quechup or other 
"social networks". You may have agreed to their "privacy policy", but 
I haven't.

-- 
Christophe Strobbe
K.U.Leuven - Dept. of Electrical Engineering - SCD
Research Group on Document Architectures
Kasteelpark Arenberg 10 bus 2442
B-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 Thursday, 15 May 2008 14:32:38 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Friday, 27 April 2012 13:15:49 GMT