RE: [higgins-dev] ExampleContextOntology

["Paul Trevithick" <paul@xxxxxxxxxxxxxxxxx>]

Hi Jim, see #

 

-----Original Message-----
From: higgins-dev-bounces@xxxxxxxxxxx [mailto:higgins-dev-bounces@xxxxxxxxxxx] On Behalf Of Jim Sermersheim
Sent: Tuesday, August 15, 2006 6:41 PM
To: 'Higgins (Trust Framework) Project developer discussions'
Subject: [higgins-dev] ExampleContextOntology

 

Paul, thanks for putting this out (http://spwiki.editme.com/ExampleContextOntology)

 

some quick questions:

 

1) You defined hasPostalAddress, said it's in the domain of Person, but I don't see a cardinality rule on Person which restricts it to 1.

# Oops. This is now fixed in jim2.owl –(see above wiki page’s attachment)

# BTW I also switched to using owl:Ontology tag at the top while I was fixing the above bug.

2) Assuming you meant to allow hasPostalAddress to have unlimited cardinality on Person, and assuming there were multiple addresses for the jim-sermersheim person, would we see multiple <jim:hasPostalAddress> elements, or multiple <rdf:Description ...> sub-elements?

# You’d see multiple hasPostalAddress properties, the value of each would be a separate PostalAddress instance. In the current example there is only one instance and it is named “urn:jims-address”.

3) Instead of defining PostalAddress as a class, could you have also defined it as a DatatypeProperty and said it's range was postalAddressType (given the definition below)?

 <xsd:complexType name="postalAddressType">
  <xsd:sequence>
   <xsd:element name="streetAddress" type="xsd:string" />
   <xsd:element name="city" type="xsd:string" />
   <xsd:element name="state" type="xsd:string" />
   <xsd:element name="postalCode" type="xsd:integer" minOccurs="0" />
   <xsd:element name="country" type="xsd:string" minOccurs="0" />
  </xsd:sequence>
 </xsd:complexType>

in which case (after making the other associations), the RDF would (I assume)look more like this:

 

    <rdf:Description rdf:about="urn:jim-sermersheim">
        <jim:firstname>Jim</jim:firstname>
        <jim:surname>Sermersheim</jim:surname>
        <jim:postalAddress>
            <jim:city>Provo</jim:city>
            <jim:postalCode>84605</jim:postalCode>
            <jim:state>Utah</jim:state>
            <jim:streetAddress>123 main street</jim:streetAddress>
        </jim:hasPostalAddress>
        <rdf:type>
            <rdf :Description rdf:about="&jim;Person"/>
        </rdf:type>
    </rdf:Description>

# I see what you’re after, but OWL Datatype Properties can only be simple XMLS datatypes or strings.

(I know this is all just RDF/OWL in nature, rather than Higgins specific, just figured you'd be able to answer faster than I can research)

 

Jim