W3C home > Mailing lists > Public > www-rdf-interest@w3.org > December 2003

Re: OWL - restrict subclassing?

From: Heiko Gottschling <gottschl@in.tum.de>
Date: Mon, 8 Dec 2003 14:26:39 +0100
To: www-rdf-interest@w3.org
Message-Id: <200312081426.39333.gottschl@in.tum.de>

On Monday 08 December 2003 14:06, jon@hackcraft.net wrote:

> I think that's okay, but why not have:
>
> <owl:Class rdf:ID="Fruit">
>     <owl:unionOf rdf:parseType="Collection">
>         <owl:Class rdf:resource="#Apple" />
>         <owl:Class rdf:resource="#Banana" />
>     </owl:unionOf>
> </owl:Class>

That brings me to another question - given the above definition of fruit, 
would the following be valid (or even implied?):

<owl:Class rdf:ID="Apple">
  <rdf:subClassOf rdf:resource="#Fruit" />
</owl:Class>

IAW, what is the relation between 'unionOf' and 'subClassOf'? Would it be ok 
to say that a class represents the union of its subclasses?

Heiko
Received on Monday, 8 December 2003 08:27:07 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:52:03 GMT