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EARL schema uses odd parseType="Collection" on rdfs:subClassOf

From: Dan Connolly <connolly@w3.org>
Date: Fri, 29 Jun 2007 22:10:04 +0000
To: public-wai-ert@w3.org
Message-Id: <1183154995.7058.299.camel@pav>




I'm looking at some EARL results using the tabulator, and
I notice some lists instead of classes as objects
of subClassOf.

I looked in the schema and sure enough...

  <rdfs:Class rdf:about="http://www.w3.org/ns/earl#Assertion">
    <rdfs:label xml:lang="en">An assertion</rdfs:label>
    <rdfs:comment xml:lang="en">Parent node that contains all parts of
an assert
ion</rdfs:comment>
    <rdfs:subClassOf rdf:parseType="Collection">
      <owl:Restriction>

Collections don't work that way. You need to repeat the subPropertyOf.

I wonder if any of the http://esw.w3.org/topic/RDFCheckingTools
will find this problem; my favorite is the online pellet demo
  http://www.mindswap.org/2003/pellet/demo.shtml

Hmm... It gives various diagnostics, but nothing that would
have explained this problem.

I can't think of any reason why EARL should go outside OWL DL.
So stuff like this should probably be fixed:

Non OWL-DL features used:
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:sourceCopy 


For reference, here's the pellet output in full etc.

Input file: http://www.w3.org/ns/earl
OWL Species: Full
DL Expressivity: ALCO
Consistent: Yes
Time: 2335 ms (Loading: 2172 Species Validation: 142 Consistency: 20 )


Non OWL-DL features used:
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:sourceCopy 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:helpAssertor 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:mode 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:result 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:test 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:pointer 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:subject 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:info 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:outcome 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:assertedBy 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:mainAssertor 
RDF Vocabulary: Using rdf:Property instead of owl:[Object|Data]Property
for earl:context 
RDFS Vocabulary: Using rdfs:Class instead of owl:Class
Untyped Class: Assuming c511:-7fe1 is a class
Untyped Class: Assuming foaf:Agent is a class
Untyped Class: Assuming c511:-7fef is a class
Untyped Class: Assuming c511:-7fe8 is a class
Untyped Class: Assuming earl:Software is a class
Untyped Class: Assuming c511:-7fdf is a class
Untyped Class: Assuming c511:-7fff is a class
Untyped Property: dc:date needs to be defined as owl:[Object|
Data]Property
Untyped Property: dc:title needs to be defined as owl:[Object|
Data]Property
Untyped Property: Assuming dc:date is an object property
Untyped Property: Assuming dc:title is an object property
Non OWL-Lite features used:
Enumerated Class: owl:oneOf construct is used
oneOf(earl:CompoundAssertor earl:SingleAssertor)
Enumerated Class: owl:oneOf construct is used oneOf(c511:-7ff2
c511:-7ff4)
Enumerated Class: owl:oneOf construct is used oneOf(earl:notTested
earl:notApplicable earl:cannotTell earl:fail earl:pass)
Enumerated Class: owl:oneOf construct is used oneOf(earl:heuristic
earl:notAvailable earl:semiAutomatic earl:automatic earl:manual)



$ curl -I http://www.w3.org/ns/earl 
HTTP/1.1 200 OK
Last-Modified: Fri, 23 Mar 2007 19:03:51 GMT
ETag: "46042497;461b8046"
Content-Length: 12924
Content-Type: application/rdf+xml; qs=0.9

http://www.w3.org/TR/2007/WD-EARL10-Schema-20070323
http://www.w3.org/TR/EARL10-Schema/


-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Saturday, 30 June 2007 10:14:17 GMT

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