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Re: Clarifications needed for the Collection construct (with CR)

From: Graham Klyne <GK@ninebynine.org>
Date: Tue, 25 Feb 2003 12:53:42 +0000
Message-Id: <>
To: pat hayes <phayes@ai.uwf.edu>
Cc: "Karsten Tolle" <tolle@dbis.informatik.uni-frankfurt.de>, <www-rdf-comments@w3.org>

At 05:43 PM 2/21/03 -0600, pat hayes wrote:
>>Would it not make more
>>sense to enter a rdf:Bag instead? But there is also another question: Do we
>>need the collection construct at all?
>It was specifically requested by the Webont working group, as a necessary 
>requirement for OWL. So the answer is yes.

I have also found in my own use of RDF that it is sometimes important to 
have a collection construct that is "closed";  i.e. to which no new 
elements can be added through RDF graph merging.  Not having this would 
make it impossible (I think) to express certain things without violating 
the basic RDF semantics.


Graham Klyne
Received on Tuesday, 25 February 2003 12:20:40 UTC

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