Re: Case for Reinstatement of Qualified Cardinality Restrictions from Mike Dean on 2003-04-23 (www-webont-wg@w3.org from April 2003)

From: Mike Dean <mdean@bbn.com>
Date: Wed, 23 Apr 2003 12:28:41 -0700
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
cc: www-webont-wg@w3.org
Message-Id: <200304231928.MAA04215@escher.SD.BBN.COM>

> > Agreed.  I normally use multiple Restrictions with the same
> > value for onProperty.
> 
> If you are doing this in the RDF encoding you are going to be unpleasantly
> surprised.

Perhaps I should clarify with an example

  <owl:Class rdf:ID="Person">
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty rdf:resource="#father"/>
        <owl:allValuesFrom rdf:resource="#Person"/>
      </owl:Restriction> 
    </rdfs:subClassOf>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty rdf:resource="#father"/>
        <owl:cardinality>1</owl:cardinality>
      </owl:Restriction> 
    </rdfs:subClassOf>
  </owl:Class>

Why is this a problem?

	Mike

Received on Wednesday, 23 April 2003 15:29:10 UTC