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Re: [ACTION] Warnings in EARL

From: Johannes Koch <johannes.koch@fit.fraunhofer.de>
Date: Tue, 05 Dec 2006 10:52:26 +0100
Message-ID: <4575415A.8090704@fit.fraunhofer.de>
To: public-wai-ert@w3.org

Shadi Abou-Zahra schrieb:

[mobileOK basic]

> They also define exactly when the WARN result 
> should be issued by using pseudo code for each test.

Maybe that's because mobileOK basic is intended to be fully 
machine-testable.

> In WCAG we don't 
> have a clear definition of when warnings should be issued so this may 
> lead to tool developers misusing warning results to satisfy the users 
> who don't like to see errors.

WCAG 2 is intended to be testable. Whether a success criterion is 
machine-testable or not is not defined. So developers of automatic 
testing tools for WCAG 2 have to think about how to present additional 
expert tests to the tool user. This could be a use case for a warning 
attached to a CANNOT_TELL result.

However the "Understanding" document clearly lists some PASSes an FAILs. 
So a tool that throws a warning (with PASS or CANNOT_TELL) instead of a 
FAIL when finding a common failure is wrong.

I still prefer the sub-classing approach.
-- 
Johannes Koch - Competence Center BIKA
Fraunhofer Institute for Applied Information Technology (FIT.LIFE)
Schloss Birlinghoven, D-53757 Sankt Augustin, Germany
Phone: +49-2241-142628    Fax: +49-2241-142065
Received on Tuesday, 5 December 2006 09:53:31 GMT

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