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Sesame's interpretation of RDF Schema

From: Arjohn Kampman <akam@aidministrator.nl>
Date: Fri, 27 Apr 2001 10:43:17 +0200 (MEST)
Message-Id: <200104270843.KAA27890@spa.aidministrator.nl>
To: www-rdf-comments@w3.org
Dear all,

A few days ago, I've already posted this message to rdf-logic. However,
a number of people pointed out to me that rdf-comments would be a better
place for it. Sorry for cross-posting this message.



A couple of weeks ago we announced Sesame, an RDF Schema querying and
storing service [1]. A number of people responded to our announcement
asking how it handles things like multiple domain and range restrictions.
We also received a number of more basic questions on RDF and RDF Schema.

In response to these questions, we composed a small document containing
a quick introduction on RDF and ontologies and a description of how Sesame
interprets RDF Schema. We think the document is worth reading even for
experts on the subject and we would welcome any feedback on the decisions
that we have made.

Subjects that are covered include:
- Why each ontology contains the classes rdfs:Resource and rdfs:Literal.
- Why these two classes are the two root for class hierarchies.
- Why we use intersetion semantics for domain and range restrictions.
- The consequences of using intersection semantics for ontology creation.

The document is available in both HTML and PDF:
http://sesame.aidministrator.nl/doc/rdf-interpretation.html
http://sesame.aidministrator.nl/doc/rdf-interpretation.pdf


We would welcome any feedback and/or discussion,

Arjohn Kampman


[1] http://lists.w3.org/Archives/Public/www-rdf-interest/2001Mar/0203.html

--
arjohn.kampman@aidministrator.nl
aidministrator nederland b.v.  -  http://www.aidministrator.nl/
prinses julianaplein 14-b, 3817 cs amersfoort, the netherlands
tel. +31-(0)33-4659987   fax. +31-(0)33-4659987
Received on Friday, 27 April 2001 04:44:44 GMT

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