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OWL-ish question

• To: xml-dev@l...
• Subject: OWL-ish question
• From: Linda Grimaldi <grimlinda@e...>
• Date: Tue, 29 Jul 2003 10:40:34 -0600 (MDT)

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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