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Re: ISSUE-70: BroaderCycles

From: Antoine Isaac <aisaac@few.vu.nl>
Date: Thu, 17 Jan 2008 10:53:24 +0100
Message-ID: <478F2594.7020002@few.vu.nl>
To: SWD WG <public-swd-wg@w3.org>

By the way this question actually arose during a meeting at the VU a 
while ago that is logically equivalent, but presents the problem from 
another perspective:

Should skos:narrower be disjoint with the transitive closure of broader ?

Antoine

> ISSUE-70: BroaderCycles
>
> http://www.w3.org/2006/07/SWD/track/issues/70
>
> Raised by: Alistair Miles
> On product: SKOS
>
> This is a sub-issue of ISSUE-44.
>
> Currently, skos:broaderTransitive is *not* defined as an irreflexive property.
>
> Therefore, graphs such as:
>
> <A> skos:broader <B> .
> <B> skos:broader <A> .
>
> ... are consistent with the SKOS data model.
>
> However, such a graph would never be found in a representation of a thesaurus 
> or classification scheme, and if it did, would probably indicate some sort of 
> error.
>
> If skos:broaderTransitive were formally defined as an irreflexive property in 
> the normative specification, this would endorse stronger checking of instance 
> data against the SKOS data model, which would probably be both useful and 
> appropriate to most SKOS use cases.
>
> Should skos:broaderTransitive be normatively irreflexive?
>
>
>
>
>   
Received on Thursday, 17 January 2008 09:53:31 GMT

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