[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Re: [namespaceDocument-8] 14 Theses
On 2002-02-19 18:10, "ext Tim Bray" <tbray@t...> wrote: > I think a namespace > names are used to label vocabularies, that it is a > good thing to label vocabularies, and that it is a good > thing if you can use the label to retrieve definitive > material about the labeled vocabulary. > > So I guess I disagree with your first "!=" axiom, > which is I guess why the rest of the argument failed > to penetrate. That may be due to a misunderstanding. I did not assert that namespace names were not intended to differentiate vocabulary terms, only that more than one functional vocabulary may be grounded in the same namespace, thus a namespace is not equivalent to a single vocabulary. It would have been better to have used my earlier form Namespace N:N Functional Vocabulary which more clearly expresses this relationship. Take XHTML for instance. We can talk about the Strict vocabulary, or the Transitional Vocabulary or the Frameset Vocabulary. These are separate functional vocabularies. Are those three vocabularies identical? No. Do they have a high degree of intersection of vocabulary terms? Yes. Do all those terms share the same namespace? Yes. Is there a 1:1 correspondence between the namespace and a single functional vocabulary? No. Do all of these terms have the exact same definition for each document model? No. Thus, the XHTML namespace does not equate to a single vocabulary -- though it does equate to a single scope of vocabulary terms. And the total set of terms grounded in the XHTML namespace do not equate/belong to a single document model -- though most are used in all three XHTML variant document models. Thus, a namespace is not equivalent to a vocabulary. I.e. Namespace != Vocabulary Is that clearer? Regards, Patrick -- Patrick Stickler Phone: +358 50 483 9453 Senior Research Scientist Fax: +358 7180 35409 Nokia Research Center Email: patrick.stickler@n...
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