- From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
- Date: Thu, 21 Nov 2002 20:12:20 -0500 (EST)
- To: www-webont-wg@w3.org
I propose that we close issue 5.8 with the following resolution(s): 1/ The exchange syntax for OWL will use RDF datatyping. 2/ The abstract syntax for OWL will use <datatype><lexical> as the syntax for typed data values and will only allow lexical forms that are valid for the datatype, i.e., <xd:integer>1.5 is not a valid typed literal in the abstract syntax. 3/ OWL will include all XML Schema built-in non-list simple types, using the canonical URI reference for them. 4/ OWL can use XML Schema non-list simple types defined at the top level of an XML Schema document and given a name, by using the URI reference constructed from the URI of the document and the local name of the simple type. That is, if U is the URI of an XML Schema document that contains, <xsd:schema ...> <xsd:simpleType name="foo"> <xsd:restriction base="integer"> <xsd:minInclusive value="1700"> </xsd:restriction> </xsd:simpleType> ... </xsd:schema> then the URI reference U#foo will be that datatype. Implementations of OWL may choose to ignore the facets such a type. 5/ Cardinality restrictions in the exchange syntax for OWL will use typed literals, as in _:x rdf:type owl:Restriction . _:x owl:onProperty ex:foo . _:x owl:cardinality "5"^^xsd:decimal . The semantics document has been updated to reflect all this, but some changes probably need to be made to the other documents. peter
Received on Thursday, 21 November 2002 20:12:28 UTC