http://www.w3.org/2007/ont/unit |
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http://www.w3.org/2000/10/swap/pim/doc#version
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$Id: unit.rdf,v 1.2 2007/07/31 23:06:23 timbl Exp $
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http://www.w3.org/2000/01/rdf-schema#comment
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Units of Measure.
This ontology defines a set of properties which may be used
for reprenting physical quantities. Each is an RDF Property
which realtes a quantity to a number which expreses the quantity in
that expressed that quntity in the given unit.
:bed ex:length _:a.
_a: m 2.
Property chaining is the equivalent of unit multiplication.
Inverse properties correspond to reciprocal units.
Because conventional signs for units are very case-sensitive, this
ontology breaks from the normal convention that all property localnames
begin with lowercase.
See also http://www-ksl.stanford.edu/knowledge-sharing/papers/engmath.html
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http://www.w3.org/2000/10/swap/pim/doc#creator
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http://www.w3.org/People/Berners-Lee/card#i
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http://creativecommons.org/ns#licence
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http://www.w3.org/2000/10/swap/LICENSE.n3
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http://purl.org/dc/elements/1.1/title
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An Ontology for Units of Measure
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