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Re: Semantics of rdf:value

From: pat hayes <phayes@ai.uwf.edu>
Date: Thu, 5 Dec 2002 17:41:39 -0600
Message-Id: <p05111b0fba1593a3783b@[10.0.100.86]>
To: Brian McBride <bwm@hplb.hpl.hp.com>
Cc: w3c-rdfcore-wg@w3.org

>Reviewing the mailing list archive, the discussion of the semantics 
>of rdf:value seems have originated in:
>
>   http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2002Nov/0648.html
>
>[[General comment, not specifically Primer:  the description of rdf:value is
>fine, but how does it relate to a normative specification?  What can we say
>formally about rdf:value?   What formal semantics (interpretation) allows
>us to make inferences like: ...]
>
>Reviewing the issues list, I find:
>
>   http://www.w3.org/2000/03/rdf-tracking/#rdfms-replace-value
>
>[[
>Resolution: This issue was discussed by the RDFCore WG on 11 January 
>2002 which resolved:
>
>o resolves to not change the name of this property at this time on 
>the grounds:
>
>- insufficient reasons to make this change
>
>- will cause existing uses to be illegal - such as examples in m&s
>
>o resolves to recast this issue as a need to clarify the semantics 
>of rdf:value.
>
>At the February 2002 face to face meeting, the RDFCore WG resolved:
>
>     * that rdf:value is a property defined in the RDF namespace
>     * that the model theory state that rdf:value is a property
>     * that no other model theory semantics is defined specifically for it
>     * the issue be closed.
>]]
>
>In the absence of new information this issue will not be reopened.

OK, fine. But then I have a new issue, which applies to rdf:value but 
also more generally.

In cases where the WG has resolved that the model theory provides no 
semantics for a construct in the RDF namespace, I suggest that none 
of our documents, including the Primer, should be written in a way 
that suggests that the construct does have an intended meaning that 
could support any valid inferences. That is, we should be consistent 
about meaning: when things have no meaning but are being kept for 
essentially political reasons, we should say that clearly.

Pat


>Brian


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Received on Thursday, 5 December 2002 18:41:43 EST

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