Re: some basic ontology problems, need for more explanation

Sandy Pan wrote:

> ... Semantic Web is actually fully based on RDF

No, it is not, although RDF may eventually turn out to be the primary 
way Semantic Web data gets represented (or perhaps not ... it remains to 
be seen).

 > , and RDF is mainly XML codes.

No, it is not.  The XML serialization of RDF is mainly used for 
interchanging collections of RDF statements, but the "RDF"-ness is in 
the set of statements, not in the XML.  In other words, RDF is basically 
a data model with a few rules, and - soon to become a full 
Recommendation, no doubt - a model theory to guide understanding of 
those statements.

Furthermore, a great deal of whatever the Semantic Web may become will 
happen in layers on top of RDF (or whatever), of which OWL would be one. 
  OWL, too, is not about the XML but about the statements and rules it 
provides a framework for.

Cheers,

Tom P

Received on Sunday, 2 November 2003 23:29:25 UTC