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* Lars Marius Garshol
|
| Hmmm. I think you can use URIs as identifiers without getting
| into difficulties over whether you regard them as locators or
| identifiers. RDF uses URIs in both ways, but the core RDF
| model does not make a distinction between these two cases.
* Bill de hÓra
|
| RDF does not use URIs as locators. Search for 'logical constant' in
| the Model Theory draft.
The RDF Model Theory does not, that is true, but RDF applications very
much do. When people write things like
<rdf:Description>
<foaf:name>Lars Marius Garshol</foaf:name>
<foaf:mbox rdf:resource="mailto:larsga@garshol.priv.no"; />
<foaf:nick>larsbot</foaf:nick>
<foaf:homepage rdf:resource="http://www.garshol.priv.no"; />
it is clearly with the intention that the values of statements using
the foaf:mbox and foaf:homepage properties are to be used as locators,
but since the core model only uses the URIs as logical constants there
is no clear distinction between URIs-used-as-locators and
URIs-used-as-identifiers.
You could, correctly, argue that that is not a distinction that exists
in RDF, but that's my whole point, because the distinction very much
exists in the larger context in which RDF finds itself, that is, the
web.
--
Lars Marius Garshol, Ontopian <URL: http://www.ontopia.net >
ISO SC34/WG3, OASIS GeoLang TC <URL: http://www.garshol.priv.no >
|
