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Re: question on domain

From: David Powell <djpowell@djpowell.net>
Date: Fri, 21 Apr 2006 00:34:37 +0100
Message-ID: <477435706.20060421003437@djpowell.net>
To: "Johnson, Matthew C. (LNG-ALB)" <ujohnmc@ReedElsevier.com>
CC: semantic-web@w3.org


> Based on my understanding, one can define a property and then
> specify the domain for that property which is the list of classes in
> which that property is allowed.

The domain of property doesn't restrict the property to that set of
classes. Instead, the domain is a set of classes that the resource is
implied to be an instance of. A property with multiple domains implies
that an instance with that property belongs to ALL of the domain
classes, in addition to any explicit rdf:type triples, and any other
classes that the instance belongs to via domains of other properties.

http://rdfweb.org/mt/foaflog/archives/000047.html explains it better.

-- 
Dave
Received on Thursday, 20 April 2006 23:34:53 GMT

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