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RE: OWL-ish question

• To: "Linda Grimaldi" <grimlinda@e...>,<xml-dev@l...>
• Subject: RE: OWL-ish question
• From: "Danny Ayers" <danny666@v...>
• Date: Tue, 29 Jul 2003 20:53:15 +0200
• Importance: Normal
• In-reply-to: <4776076.1059501946461.JavaMail.nobody@t...>
• Reply-to: <danny666@v...>

Hi Linda,
I believe it is ok, but I'm less certain it'll do what you want.

> <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>

This part on its own :

> <owl:ObjectProperty rdf:ID="hasMapping">
>    <rdfs:domain rdf:resource="#ClassA">
>    <rdfs:range rdf:resource="#ClassA">
>    <rdf:type rdf:resource="&owl;TransitiveProperty"/>
> </owl:ObjectProperty>

is textbook stuff,

(I'd have made it a typed element meself, but whatever)

this part on its own :

> <owl:ObjectProperty rdf:ID="hasMapping">
>    <mappingClass rdf:resource="#MappingClass"/>
> </owl:ObjectProperty>

is *also* textbook stuff for regular RDF classes. So put them together and I
think it's fine. But note that the mapping class will be fixed on the
property - the same mapping class will apply for all use of the property,
i.e. it's a schema thing. Is that what you were after?

Beware too of possible problems with cardinality on TransitiveProperty.

> > 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?).

heh, a headcount would be interesting (1,2,3 swivel!)

The W3C lists are probably more OWLish : rdf-logic I think is closest, then
rdf-interest.
You mentioned Java - are you using Jena? If so don't forget jena-dev. The
esw and rdfweb lists might also be appropriate, depending on what country
(Europe) and domain (FOAF) you're working on. If you hear of any more please
let me know ;-)

Cheers,
Danny.

• References:
  • Re: OWL-ish question
    • From: Linda Grimaldi <grimlinda@e...>

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