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More specifically, is this good "OWL"?
<owl:ObjectProperty rdf:ID="hasMapping">
<rdfs:domain rdf:resource="#ClassA">
<rdfs:range rdf:resource="#ClassA">
<rdf:type rdf:resource="&owl;TransitiveProperty"/>
<mappingClass rdf:resource="#MappingClass"/>
</owl:ObjectProperty>
Linda
-------Original Message-------
From: Linda Grimaldi <grimlinda@earthlink.net>
Sent: 07/29/03 10:40 AM
To: xml-dev@lists.xml.org
Subject: [xml-dev] OWL-ish question
>
> I'm trying to figure out a good way to model the following problem type in
OWL and would appreciate any help the more OWLish members of the list could
offer. (BTW, is there a better list for RDF/OWL questions?).
I have a class of objects, some of which can be transformed pairwise into
one another, in other words a partial mapping from a set A onto itself.
The mappings are inherently transitive- if individual a maps to Individual
b and b to c, then I have identified a path from a to c- but not
necessarily symmetric.
In order to preserve the transitive property, I define a property with the
ID="hasMapping" and a domain and range of class A. I state that this
property has an rdf:type of owl:TransitiveProperty. Now, I need to associate a
Java class that actually implements the transformation with that property.
Can I define a "property on a property" in OWL? I think that is what I
want to do- the property would have a property (NOT a subproperty) named
"usesMappingClass". Is that legitimate?
The other way I thought of doing it is to associate a mapping class with
the instance that is being mapped; however, I lose the transitivity of the
relationship that way. In other words, I could define a "hasMapping" on the
domain of Class A with a range of "MappingClass", but that is not a
transitive property.
Advice?
Thanks,
Linda
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