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Re: Range constraints on collection members

From: Brian McBride <bwm@hplb.hpl.hp.com>
Date: Sat, 06 Apr 2002 11:11:32 +0100
Message-Id: <5.1.0.14.0.20020406111022.00af3ae8@0-mail-1.hpl.hp.com>
To: Pat Hayes <phayes@ai.uwf.edu>, Patrick Stickler <patrick.stickler@nokia.com>
Cc: w3c-rdfcore-wg@w3.org
At 18:35 05/04/2002 -0600, Pat Hayes wrote:
>>On 2002-04-04 22:51, "ext Graham Klyne" <Graham.Klyne@MIMEsweeper.com>
>>wrote:
>>
>>>  At 06:02 PM 4/4/02 +0100, Brian McBride wrote:
>>>>  RDF Schema Issues
>>>>
>>>>      * rdfs-constraining-containers: Should it be possible to constrain
>>>>  the members of a container to be of a given type?
>>>
>>>  I have a vague recollection we'd decided to defer this one??  (i.e. that
>>>  RDFS 1.0 would provide no such capability.)
>>
>>I just recieved email from an implementor, Garret Wilson at Global Mentor,
>>that this is sorely needed for what they are doing.
>
>Then maybe they should be using DAML ? Look, RDF is a simple language. 
>Various people will definitely want more than RDF can provide. We cannot 
>insert new features just because they are needed: then we really would be 
>doing Web Logic, as Massimo has accused us of doing.

Just so.  Can DAML+OIL express this?  Is it a webont requirement to be able 
to express it?

Brian
Received on Saturday, 6 April 2002 05:14:57 EST

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