RE: [Requirementl][SKOS-Core] Collections

Quick comment on Alistair's two replacement scenarios.

You do get thesauri which feature both of these, namely
	Term A  USE Term B AND Term C
	Term D  USE Term E OR Term F

The "AND" combination is often very useful and entirely to be supported 

The "OR" combination is not so clever. Usually it indicates a muddle in
the original thinking. Here's an example from a thesaurus I once worked
with:

	Dams  USE Mothers OR Hydraulic structures

Plainly "Dams" never represented one concept. It was the confusion of
two completely different concepts. Recommended practice in the
forthcoming BS8723 will be to concoct thesaurus entries in the style:
	Dams (mothers) USE Mothers
	Dams (hydraulic structures) USE Hydraulic structures
In this way, you can avoid ever having entries of the OR style. BUT, you
may still find them in thesauri out there. And you will find them in
mappings from one thesaurus to another.

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-----Original Message-----
From: public-esw-thes-request@w3.org
[mailto:public-esw-thes-request@w3.org] On Behalf Of Miles, AJ
(Alistair) 
Sent: 24 August 2004 14:26
To: 'public-esw-thes@w3.org'
Subject: RE: [Requirementl][SKOS-Core] Collections



There's another usage scenario for collections ...

(3) In change management, to express replacement of a concept by a
combination or choice of concepts ...

DCTerms vocab has this useful looking property pair dct:replaces /
dct:isReplacedBy
 - we could use a collection to say something like 'concept A is
replaced by either (concept B or concept C)' and 'concept D is replaced
by both(concept E and concept F)' ... which would then allow us to write
tools to semi-automate the update of a metadata repository when a new
version of a subject scheme is released.

Al.

[see
<http://lists.w3.org/Archives/Public/public-esw-thes/2004Aug/0075.html>
for (1) and (2) usage scenarios]

Received on Wednesday, 25 August 2004 07:52:51 UTC