I'm trying to get clear in my mind what URIs like
http://purl.org/dc/terms/LCSH (i.e. the URIs DCMI assigns to "encoding
schemes") denote.
I think I'd always worked on the basis that, even though they are
assigned by DCMI, these URIs denoted the actual classification
schemes/systems i.e. the class of "subjects" which make up the Library
of Congress Subject Headings, the Dewey Decimal Classification system
and so on. A resource of type http://purl.org/dc/terms/LCSH _is_ a LCSH
term, and the class of all such terms _is_ the LCSH "system".
So on that basis it would be fine to say something like
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix ex: <http://example.org/> .
dcterms:LCSH dc:creator ex:LoC .
(if http://example.org/LoC denotes the Library of Congress as an
organisation)
But it would be inaccurate to say something like
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix ex: <http://example.org/> .
dcterms:LCSH dc:creator ex:DCMI .
(if http://example.org/DCMI denotes the DCMI)
because although DCMI has assigned the URI, they didn't create the
classification system/vocabulary.
But I notice that the recent DCMI schemas say things like
dcterms:LCSH dcterms:issued "2000-07-11" .
These statements don't seem to fit with the view above, because LCSH was
around before 2000. So I'm a bit unsure now what
http://purl.org/dc/terms/LCSH really does identify!
Pete
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