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Re: Changes to make S&AS consistent with RDF Semantics document

From: Jeremy Carroll <jjc@hpl.hp.com>
Date: Mon, 15 Dec 2003 16:09:21 +0100
To: www-webont-wg@w3.org
Message-Id: <200312151609.21926.jjc@hpl.hp.com>

> I would like to point out that there is no inconsistency between RDF 
> and OWL S&AS.  There exists an inconsistency between S&AS and OWL Test.
> As you noted, tests 201 to 205 would need reconsideration.

I might be being a bit slow here ....

OWL S&AS says that:
  OWL DL datatype theories must contain xsd:string and xsd:integer and may 
contain other builtin datatypes (including rdf:XMLLiteral)

  OWL Full datatype theories must contain xsd:integer and xsd:string
Definition: Let D be a datatype map that includes datatypes for xsd:integer 
and xsd:string. An OWL interpretation, I = < RI, PI, EXTI, SI, LI, LVI >, of 
a vocabulary V, where V includes the RDF and RDFS vocabularies and the OWL 
vocabulary, is a D-interpretation of V that satisfies all the constraints in 
this section. 

The latter can be read with an understood "in addition to rdf:XMLLiteral" 
which is required from RDF semantics

If we take this reading of OWL S&AS, which I (as an individual - not as editor 
nor as HP rep) could go along with then this suggests that the following part 
of OWL test is misleading in the same way as the quoted para from OWL S&AS 
current text
The datatype theory of an OWL consistency checker MUST minimally support at 
least xsd:integer, xsd:string from [XML Schema Datatypes]. 
could read
The datatype map of an OWL consistency checker MUST minimally support at least 
xsd:integer, xsd:string from [XML Schema Datatypes], and for an OWL Full 
consistency checker, also rdf:XMLLiteral.

Of the tests I believe that only misc-205 is an issue.
This would need to be changed from being valid in Lite and Full (and hence 
also DL), to being a Lite (and implicitly DL) but not Full test.

If we were wanting to be totally minimalist then we could say that Herman 
appears to be proposing a change to miscellaneous-205 of 
s/Lite Full/Lite/
and corresponding change to the Manifest file.

Received on Monday, 15 December 2003 10:10:26 UTC

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