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Re: Playing with the model

From: Libby Miller <Libby.Miller@bristol.ac.uk>
Date: Thu, 28 Feb 2002 14:49:38 +0000 (GMT)
To: Wendy A Chisholm <wendy@w3.org>
cc: w3c-wai-er-ig@w3.org, Libby Miller <Libby.Miller@bristol.ac.uk>, danbri <danbri@w3.org>
Message-ID: <Pine.GSO.4.44.0202281445380.29526-100000@mail.ilrt.bris.ac.uk>

hi Wendy

I'll look at this in more detail soon, but I was trying to say that
this is like 'fake reification' where the semantics are not explicit to
the RDF processor. I'm not sure whether to recommend an approach like
this, although I can see the attraction. This should be distinguished
from the approach which danbri suggested where you reify by pointing to
another document.

Libby

On Thu, 28 Feb 2002, Wendy A Chisholm wrote:

> Hello folks,
>
> I've been playing around the last few days with EARL schema possibilities.  I've gotten rid of blank nodes, which seemed like a good idea.  Is it an improvement?
>
> Sean and Danbri, Libby said this was "implicit reification."  What are the implications on queries?  I haven't played or thought much about that yet.
>
> I've worked 2 examples. One is a single simple statement, the second combines 2 to make sure that we don't lose important info.
>
> Example 1: Simple statement
> success3.svg is the graph produced by the RDF Validator.
>
> <rdf:RDF
> xmlns:sp="http://valet.webthing.com/xmlns/sp"
> xmlns:valet="http://valet.webthing.com/xmlns/valet"
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>
>  <Assertor rdf:about="http://valet.webthing.com/page/">
>   <name>Page Valet</name>
>   <testMode>Automatic</testMode>
>   <contactInfo>http://valet.webthing.com/page/</contactInfo>
>
>    <Asserts>
>       <TestSubject rdf:about="http://mypage.org">
>          <rdf:type rdf:resource="http://WebContent"/>
>          <Result>
>             <TestResult rdf:about="http://passes">
>                <TestID rdf:resource="http://testid"/>
>                <Confidence>High</Confidence>
>             </TestResult>
>          </Result>
>       </TestSubject>
>    </Asserts>
>  </Assertor>
> </rdf:RDF>
>
> Example 2: simple merge
> Here is a simple merge of a couple of assertions to make sure we don't lose info.  success4.svg is the graph produced by the RDF Validator.
>
> <rdf:RDF
> xmlns:sp="http://valet.webthing.com/xmlns/sp"
> xmlns:valet="http://valet.webthing.com/xmlns/valet"
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>
>  <Assertor rdf:about="http://valet.webthing.com/page/">
>   <name>Page Valet</name>
>   <testMode>Automatic</testMode>
>   <contactInfo>http://valet.webthing.com/page/</contactInfo>
>
>    <Asserts>
>       <TestSubject rdf:about="http://mypage.org">
>          <rdf:type rdf:resource="http://WebContent"/>
>          <Result>
>             <TestResult rdf:about="http://passes">
>                <TestID rdf:resource="http://testid"/>
>                <Confidence>High</Confidence>
>             </TestResult>
>          </Result>
>       </TestSubject>
>    </Asserts>
>
>    <Asserts>
>       <TestSubject rdf:about="http://mypage.org">
>          <rdf:type rdf:resource="http://WebContent"/>
>          <Result>
>             <TestResult rdf:about="http://fails">
>                <TestID rdf:resource="http://testid"/>
>                <Confidence>Low</Confidence>
>             </TestResult>
>          </Result>
>       </TestSubject>
>    </Asserts>
>
>  </Assertor>
> </rdf:RDF>
>
> --
> wendy a chisholm
> world wide web consortium
> web accessibility initiative
> seattle, wa usa
> /--
Received on Thursday, 28 February 2002 09:51:27 GMT

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