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Re: DTTF: summary (gasp!)

From: Guus Schreiber <schreiber@swi.psy.uva.nl>
Date: Mon, 27 May 2002 16:41:59 +0200
Message-ID: <3CF245B7.66F87FCE@swi.psy.uva.nl>
To: www-webont-wg@w3.org
CC: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, jos.deroo.jd@belgium.agfa.com, jjc@hplb.hpl.hp.com, jonathan@openhealth.org
I'm getting a bit worried about the A-box/T-box discussions.
We have "classes as instances" on our requirements list.
We use it a lot in our (RDFS-based) applications, for example:

  rosch:natural-category rfs:type rdfs:Class
  aat:seating-furniture rdf:type rdfsClass

  aat:chair rdf:type rosch:natural-category
  aat:chair rdfs:SubClassOf aar:seating-furniture

In words: a "chair" is a subclass of "seating furniture" (in the Art and
Architecture Thesaurus) and an instance of a Roschian "natural category"
(important meta-info for index/search purposes). 

Does this still mean something using dark triples?


A. Th. Schreiber, SWI, University of Amsterdam, Roetersstraat 15
NL-1018 WB Amsterdam, The Netherlands, Tel: +31 20 525 6793 
Fax: +31 20 525 6896; E-mail: schreiber@swi.psy.uva.nl
WWW: http://www.swi.psy.uva.nl/usr/Schreiber/home.html
Received on Monday, 27 May 2002 10:45:35 UTC

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