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Re: Literals in OWL

From: Bijan Parsia <bparsia@cs.man.ac.uk>
Date: Wed, 16 Jan 2008 21:29:42 +0000
Message-Id: <84A77E77-806B-492F-991D-7045A76B0D72@cs.man.ac.uk>
Cc: Owl Dev <public-owl-dev@w3.org>
To: Matt Williams <matthew.williams@cancer.org.uk>

For the syntax (and some discussion) in abstract syntax:
	"The built-in RDF datatype, rdf:XMLLiteral, is also an OWL built-in  

	"Definition: An OWL vocabulary V consists of a set of literals VL  
and seven sets of URI references...VD, the datatype names of a  
vocabulary, contains the URI references for the built-in OWL  
datatypes and rdfs:Literal.
Definition: As in RDF, a datatype d is characterized by a lexical  
space, L(d), which is a set of Unicode strings; a value space, V(d);  
and a total mapping L2V(d) from the lexical space to the value space.

Definition: A datatype map D is a partial mapping from URI references  
to datatypes that maps xsd:string and xsd:integer to the appropriate  
XML Schema datatypes.

A datatype map may contain datatypes for the other built-in OWL  
datatypes. It may also contain other datatypes, but there is no  
provision in the OWL syntax for conveying what these datatypes are."


Received on Wednesday, 16 January 2008 21:27:51 UTC

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