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   Re: Schemata are not just constraints [was: "RDF + Topic Maps" = TheFutu

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  • From: ricko <ricko@geotempo.com>
  • To: xml-dev@lists.xml.org
  • Date: Thu, 21 Dec 2000 18:10:03 +0800

 From: "Martin Bryan" <mtbryan@sgml.u-net.com>
 . As Len Bullard
> pointed out, http://www-ksl.stanford.edu/kst/what-is-an-ontology.html
> defines ontology as:
> "definitions associate the names of entities in the universe of discourse
> (e.g., classes, relations, functions, or other objects) with
> human-readable text describing what the names mean, and formal
> axioms that constrain the interpretation and well-formed use of
> these terms".

"Ontology" in general means the study of forms, as a branch of metaphysics,
the philosophical study of things beyond science and mathematics (e.g. the
basic pieces of mental or analystical furniture, such as
"substance/accident" or "essense" or "property" or "class" or "type" etc.)
and has a long history.   "An ontology" as defined above is a more
specialized usage.

Rick Jelliffe


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