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Re: Formalizing WCAG 2.0 test procedures

From: cstrobbe <Christophe.Strobbe@esat.kuleuven.be>
Date: Wed, 6 Dec 2006 15:24:52 +0100
Message-ID: <1165415092.4576d2b4353d7@webmail2.kuleuven.be>
To: public-wai-ert@w3.org

Hi Vicente, All,

Vicente Luque Centeno, referring to 
I think providing tests samples (of what is good and what is bad) is 
clearly OK, but I am farther concerned on the test procedures, the 
rules, ie, the conditions that actually say what is good and what is 
bad. I am still waiting for that from W3C. Maybe I got missed and it's 
being targeted somewhere else? Did I loose the proper link?

For instance, at 

it's said that images must have an "alt" attribute. "Description", 
"resources" and "examples" are provided, but the "Tests" section says 
just the word "Procedure" (only one simple word open to interpretation 
with no formalization).

This is the first draft of "Techniques for WCAG 2.0" and the document 
will continue to evolve. The procedure in technique H37 was still 
missing in April, but you can have a sneak peak at the proposed 
procedure and expected results in the editors' draft:
This test now requires an alt attribute on every img element.

Generally speaking, every technique and failure should have a test 
procedure eventually.

Vicente Luque Centeno, about TSD TF:
Maybe I didn't search well, ... is there any attempt to provide 
evaluation tests procedures (beyond sample tests)? Or is it still a 
"for-the-future" work? Maybe I didn't look at the appropriate pages? As 
you already know, I would really be happy to collaborate with that. :-)

As Shadi pointed out, the Test Samples Development Task Force does not 
define evaluation procedures because only the WCAG WG determines what 
conforms or does not conform to WCAG 2.0. The TSD TF can review test 
procedures and propose changes, but these changes are meant to remove 
ambiguity rather than changing the meaning of the technique. If you 
would like to review test procedures, the TSD TF is the place to be ;-)

Best regards,

Christophe Strobbe

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

Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
Received on Wednesday, 6 December 2006 14:25:20 UTC

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