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Re: follow-up from EARL project review

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Wed, 04 Apr 2007 14:24:30 +0200
Message-ID: <461398FE.7000708@w3.org>
To: Dan Connolly <connolly@w3.org>, public-wai-ert@w3.org

[CC'ing ERT WG to share some thoughts and collect input]

Hi DanC,

We haven't actually considered this. Note that not only Assertor is left 
out, but also the Result which is the actual payload of an Assertion in 
EARL. I'm also unsure about the Assertor being uniquely identifiable by 
the context since one of the use cases for EARL is to merge reports from 
different sources. It is therefore important to relate each Assertion to 
an Assertor in an unambiguous way.

Do you see specific advantages in changing the current design of EARL?


Dan Connolly wrote:
>>   - What if I want to say that Widget12 passed Test27, and let the 
>> context capture who says so?
> An earl assertion relates 4 things. RDF statements most naturally
> relate 2 things in terms of a 3rd. A natural 2-part statement is
>  ____ passes-test ____ .
> or
>  ___ fails-test ___ .
> That puts the test result in the RDF property position, the
> EARL subject in the RDF subject spot, and the test
> criterion in the RDF object spot. It leaves out the Assertor,
> but one can often take the author of the enclosing document
> as the assertor, in RDF.
> I think perhaps that design fits more naturally with RDF,
> and I was wondering if you had considered it.
> See also: http://esw.w3.org/topic/NaryRelations and
> Defining N-ary Relations on the Semantic Web: Use With Individuals
> http://www.w3.org/TR/2004/WD-swbp-n-aryRelations-20040721/

Shadi Abou-Zahra     Web Accessibility Specialist for Europe |
Chair & Staff Contact for the Evaluation and Repair Tools WG |
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Web Accessibility Initiative (WAI),   http://www.w3.org/WAI/ |
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Received on Wednesday, 4 April 2007 12:24:41 UTC

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