I would recommend to use developed and used already industrial standards to describe relational schema In particular CWM (Common Warehouse Model) from OMG which is built on top of MOF http://www.omg.org/cwm/ I had been using it (my own implementation) for a few years in my relational DBMS <-> RDF ETL tool. CWM is quite powerful to extend a wide set relational, OO, and XML schema (support of datatypes, integrity constraints, etc) and quite flexible to extend it if you need features which are not included into the current version of CWM/ As far as I remember it is supported by (or they intended to support) Oracle products, IBM, Unisys, and other key players Andrei On Aug 9, 2004, at 11:41 PM, Prajakta Nivargi wrote: > Hello, > > > > I an trying to create an ontology for relational databases. This is > like a meta ontology and not for any particular database. I have > created an ontology which has classes like – table, fields, records > etc and certain properties. > > My aim is to target different levels or types of data i.e. open data, > confidential data etc. > > Is anyone aware of any such existing ontology with which I could > verify mine? > > > > Thanks, > > Prajakta > Andrei Lopatenko Research Assistant Free University of Bozen-bolzano PhD Student The University of Manchester +39 (0471) 315-644 http://www.inf.unibz.it/~lopatenko/Received on Monday, 9 August 2004 23:02:05 GMT
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