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What is an RDF datatype?

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Thu, 30 Jan 2003 10:14:07 -0500 (EST)
Message-Id: <20030130.101407.63296070.pfps@research.bell-labs.com>
To: www-rdf-comments@w3.org

What is a datatype in RDF?  

Concepts says (in Section 3.3)
	RDF uses the datatype abstraction defined by XML Schema Part 2:
	Datatypes ...

XML Schema Part 2 says
	... a datatype is a 3-tuple, consisting of a) a set of distinct
	values, called its value space, b) a set of lexical
	representations, called its lexical space, and c) a set of facets
	that characterize properties of the value space, individual values
	or lexical items.

(Actually this appears to be a bug in the XML Schema documents, as the
lexical-to-value mapping is nowhere indicated.)  Let us thus assume that as
far as RDF is concerned, this allusion makes a datatype be a value space, a
lexical space, a mapping from the latter to the former, and a set of

So what happened to the XML Schema datatype facets?  Are they part of RDF
Received on Thursday, 30 January 2003 10:16:02 UTC

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