Re: RDF Question: just need to reference the parent class for domain?
On Tue, 4 May 1999, Roger L. Costello wrote: > Note that SLR is a subClass of Camera. In the definition of the f-stop > property I indicate what domains the property may be used in - Camera > and SLR. My question is this: since SLR is a subclass of Camera then > can I omit the second domain property[...] > f-stop can be used in any sublasses of Camera and I don't have to > specify all the subclasses that it may be used in. Correct? /Roger Yes. If you say that f-stop has a domain of class 'Camera', you're claiming that it makes sense (ie. is consistent) to apply f-stop properties to resources that are members of that class. "Sub-class" just says that one set of resources is a subset of another. So we know that if a resource is of type SLR, and all SLRs are Cameras (ie. SLR--subClassOf-->Camera), then that resource is also a camera. And if its a camera, we can use properties applicable to cameras on it. Dan xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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