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WCAG 2.0 Test Suites (was Re: EARL Scenarios)

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Mon, 21 Feb 2005 15:23:03 +0100
To: <public-wai-ert@w3.org>
Message-ID: <005401c51820$daed1dc0$4502010a@K2>


This is where the WCAG 2.0 Test Suites come into play. In WCAG 2.0 each
"Success Criteria" needs to be testable (independently from automated or
manual execution). For each Success Criteria there are fine-grained
tests which should determine whether the criteria is met or not.

In ERT we need to help the development of these Test Suites in order to
allow the following:

* tests are well structured and complete so that E&R tools could use
them effectively

* tests are atomic and unambiguous to ensure a single interpretation in
E&R tools

* tests can be used as a repository to measure the coverage and
precision of E&R tools

Maybe we should discuss some of this on the call tomorrow.


-----Original Message-----
From: public-wai-ert-request@w3.org On Behalf Of Andrew Kirkpatrick
Sent: Friday, February 18, 2005 20:15
To: public-wai-ert@w3.org
Subject: Re: EARL Scenarios

> One of the main objective of EARL is to combine different tools' 
> evaluation results in order to compare them. Another important feature

> of EARL is that it can be used for exchanging data between tools.

I agree with this as a good objective.  Comparing results between tools 
won't be possible until there is a defined list of tests that the tools 
can reference.  It is possible to reference issues by the WCAG 
guideline, but the actual tests occur at a much more fine-grained level 
(e.g. alt missing from an image that is in a link that contains other 
text is more specific than 'images must have alt').

Getting this list is very important, and difficult.


Andrew Kirkpatrick
WGBH National Center for Accessible Media
125 Western Ave.
Boston, MA  02134
E-mail: andrew_kirkpatrick@wgbh.org
Received on Monday, 21 February 2005 14:23:31 UTC

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