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SemWeb tools

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Thu, 03 May 2007 08:31:32 +0200
Message-ID: <463981C4.7000108@w3.org>
To: public-wai-ert@w3.org

Hi,

Ref: <http://esw.w3.org/topic/SemanticWebTools>

The SemWeb folks have a collection of some of the tools in a wiki. I've 
been playing around with some of the OWL checkers [1] and found at least 
one bug in the schema:

<rdfs:Class rdf:about="http://www.w3.org/ns/earl#SingleAssertor">
   <rdfs:label xml:lang="en">Single Assertor</rdfs:label>
   <rdfs:comment xml:lang="en">One person or evaluation tool that claims 
assertions</rdfs:comment>
   <owl:oneOf rdf:parseType="Collection">
     <owl:Thing rdf:type="http://www.w3.org/ns/earl#Software"/>
     <owl:Thing rdf:type="http://xmlns.com/foaf/0.1/Agent"/>
   </owl:oneOf>
</rdfs:Class>


Should read:

<rdfs:Class rdf:about="http://www.w3.org/ns/earl#SingleAssertor">
   <rdfs:label xml:lang="en">Single Assertor</rdfs:label>
   <rdfs:comment xml:lang="en">One person or evaluation tool that claims 
assertions</rdfs:comment>
   <owl:oneOf rdf:parseType="Collection">
     <owl:Thing rdf:about="http://www.w3.org/ns/earl#Software"/>
     <owl:Thing rdf:about="http://xmlns.com/foaf/0.1/Agent"/>
   </owl:oneOf>
</rdfs:Class>


...in other words rdf:about instead of rdf:type for the oneOf construct.

It also seems that the cardinality restrictions are implicitly creating 
a parent (anonymous) class because of the <rdfs:subclassOf> construct.

Let me know if you have other observations or findings...

[1] 
<http://esw.w3.org/topic/SemanticWebTools#head-c5457b113c9ff892f0dfa7fe9e8ea7a19f36de49>


Regards,
   Shadi


-- 
Shadi Abou-Zahra     Web Accessibility Specialist for Europe |
Chair & Staff Contact for the Evaluation and Repair Tools WG |
World Wide Web Consortium (W3C)           http://www.w3.org/ |
Web Accessibility Initiative (WAI),   http://www.w3.org/WAI/ |
WAI-TIES Project,                http://www.w3.org/WAI/TIES/ |
Evaluation and Repair Tools WG,    http://www.w3.org/WAI/ER/ |
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Received on Thursday, 3 May 2007 06:31:31 GMT

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