Differences between SKOS and ISO standards : transitivity

I realise that I was not quite rigorous in what I said about 
transitivity in my message earlier today. To  clarify, as I understand 
them to be used in the thesaurus community and in ISO standards:

The generic relationship BTG is transitive

The partitive relationship BTP is transitive

The generalised  relationship BT can not be assumed to be transitive, 
because different occurrences of it may represent a mixture of the above 
types.

Transitivity does not arise in the instance relationship BTI because you 
can't have an instance of an instance.

Leonard Will
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Received on Friday, 13 February 2009 16:48:10 UTC