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Re: OWL database schemas?

From: Farrukh Najmi <Farrukh.Najmi@Sun.COM>
Date: Wed, 31 Dec 2003 11:38:07 -0500
To: Benjamin Nowack <bnowack@appmosphere.com>
Cc: www-rdf-interest@w3.org
Message-id: <3FF2FB6F.6050909@sun.com>

Benjamin Nowack wrote:

>On 31.12.2003 14:18:15, Raphael Volz wrote:
>>KAON only supports a slight extension of RDFS, the schema for storage employed
>>in KAON is documented
>>in http://kaon.semanticweb.org/Members/rvo/KAON_Dev_Guide.pdf
>>We are currently working on support for OWL; the storage scheme we use here is
>>very simple since we create unary predicates/tables for every class and binary
>>predicates/tables for every property, the semantics of the ontology is
>>translated to rules that operate on top of these predicates. The OWL ontology
>>definition itself is not stored in the database but kept in main memory, we
>>actually did not encounter any ontology yet where this strategy did not work
>Ah, I see. Your approach is more flexible and future-proof than mine though
>I'm using the tables the other way round, for a web-based ontology modeler.
>I hardcoded the OWL terms into the schema, so I hope the spec will not change
>too soon ;-)
I too am looking into relational schema for storing OWL ontologies. This 
work is part of the Semantic Content Management sub-committee of the 
ebXML Registry TC [1] at OASIS. The goal is to provide support for 
publish, discovery and use of OWL ontologies and knowledge bases, and 
more generally RDF content, within an ebXML Registry.

I would be interested in collaborating with others on this activity. 
Would it be possible for you to share your work-in-progress?


[1] http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=regrep
Received on Wednesday, 31 December 2003 11:33:07 UTC

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