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RE: EARL Testcase

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Thu, 15 Apr 2004 19:21:57 +0200
To: "'Chris Ridpath'" <chris.ridpath@utoronto.ca>, "'WAI ER IG List'" <w3c-wai-er-ig@w3.org>
Message-ID: <006501c4230e$27ceb8f0$6466a8c0@K2>

hi chris, hi all,

this is indeed my problem when trying to construct an "EARL Wrapper
Tool". how does one aggregate data from different sources?

my thought is that the best solution would be to have the earl:testcase
element bind a tool specific testid (for example
http://vendor-a.org/tool/tests/#check-for-alt) to a testcase of a test
suite which all sources (tools or humans) in the collection are testing
against. in this case it would be for example
http://www.w3.org/TR/WCAG10/#tech-text-equivalent **.

when aggregating (or exchanging) the results, one could compare the
assertions conducted on the testcase (marked by ** in the paragraph
above) and make more comprehensive statements (for example two tools
can't tell pass/fail, one tool says it failed, etc). the real tests
conducted (for example http://vendor-b.org/tool/tests/#check-alt-sanity)
become secondary but interesting algorithms could be based on using the
earl:mode and the earl:assertedBy.

any thoughts on this?

regards,
  shadi


-----Original Message-----
From: w3c-wai-er-ig-request@w3.org [mailto:w3c-wai-er-ig-request@w3.org]
On Behalf Of Chris Ridpath
Sent: Thursday, April 15, 2004 16:42
To: WAI ER IG List
Subject: EARL Testcase



EARL can be used to state that a particular resource passes or fails a
particular test. The test can be something subjective like the WAI
guidelines. We can use the earl:testcase element to make these sort of
statements.

Our checker program makes a statement that a particular page passes or
fails
the WAI guidelines and uses our URI as the definition of the WAI
guidelines.
Example:

<earl:testcase
rdf:resource="http://checker.atrc.utoronto.ca/wcag-1-0-aa.xml" />

Other programs will generate a similar statement and will reference
their
definition of the WAI guidelines. Example:

<earl:testcase rdf:resource="http://accessibility.tester/WCAG-AA.html"
/>

How can a program collect the EARL results from various checking tools
and
tell if the page passes/fails the WAI guidelines?

To put it another way - How can you tell that both programs are testing
the
same guidelines? (Perhaps using the earl:testcase rdf:about attribute?)

Chris
Received on Thursday, 15 April 2004 13:22:13 GMT

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