- From: Dan Connolly <connolly@w3.org>
- Date: Wed, 05 Dec 2001 07:28:25 -0600
- To: Sergey Melnik <melnik@db.stanford.edu>
- CC: RDFCore WG <w3c-rdfcore-wg@w3.org>
Sergey Melnik wrote: [...] > Idiom B > ======= > > Another way of using datatype mappings is to define the range of a > property as the *lexical space* of a datatype: > > dc:date --rdfs:range--> [] <--rdfs:range-- xsd:duration "the range of a property" is an ill-formed definite description; a property can have lots different classes as ranges. Not to mention that a bnode can't be the object of two different statements in RDF/xml. We can use this idiom if, as Graham suggested[1], we pick names for "the lexical space of the xsd:duration datatype"; say, rdfd:durationLexicalSpace. Of course, once we pick it, we would say xsd:duration rdfs:range rdfd:durationLexicalSpace. I think Idiom B is much akin to PL[2]. I like the idea that - we give names to all three (lexical, value, mapping) parts of each of the primitive datatypes - we explain how to use them (PL/S-B, S-A) - we let users choose [1] http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2001Nov/0646.html mid:5.1.0.14.2.20011129192853.00a00250@joy.songbird.com [2] http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2001Dec/0003.html mid:3C0C100C.245969A7@w3.org -- Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Wednesday, 5 December 2001 08:28:27 UTC