LANG: owl:Ontology

From: Jonathan Borden <jonathan@openhealth.org> Date: Wed, 13 Mar 2002 19:15:18 -0500 Message-ID: <000b01c1caed$5a5081d0$0a2e249b@nemc.org> To: "WebOnt WG" <www-webont-wg@w3.org> · This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:57:48 GMT

There is no requirement that an RDF document have a root element <rdf:RDF>.
Particularly because OWL may be used, or make have interpretations that go
beyond the base RDF (e.g. OWL is colloquially 'layered' on RDF, use of a
distinct root element e.g. <owl:Ontology> is a clearcut signal to interested
OWL processors, that the contents are OWL.

i.e.:

<owl:Ontology xmlns:owl="...">
    <rdf:Description rdf:about="...">
    ...
    </rdf:Description>

    <owl:Class rdf:ID="bar"/>
...
</owl:Ontology>

is perfectly legal RDF and good practice.

Jonathan