- From: Pat Hayes <phayes@ai.uwf.edu>
- Date: Mon, 4 Feb 2002 19:58:20 -0600
- To: Brian McBride <bwm@hplb.hpl.hp.com>
- Cc: w3c-rdfcore-wg@w3.org
Further to my last message, let me suggest some key questions to ask about the things that a reification is supposed to describe, ie what _:x is intended to denote when we write _:x <rdf:type> <rdf:Statement> . _:x <rdf:subject> <subject> . _:x <rdf:predicate> <predicate> . _:x <rdf:object> <object> . 1. Does it make sense to say that _:x has properties like date it was asserted, who wrote it, where it was imported from? (If not, just to be awkward, what if someone actually asserts such properties of _:x? Does something complain, or is that just a kind of inconsistency?) 2. If there is only one of these things, where is it? Does that question make sense? If not, what kinds of question would make sense applied to the thing? 3. Can the thing be located in an RDF graph? If so, and if that graph is in a document (with a URI), is the thing in the document? (Could it be accessed via the URI?) If the document is copied, is the thing in the graph also copied? If so, is the copy of it other thing or is it the same thing? If another, does it also satisfy the description in the reification above? Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 home 40 South Alcaniz St. (850)202 4416 office Pensacola, FL 32501 (850)202 4440 fax phayes@ai.uwf.edu http://www.coginst.uwf.edu/~phayes
Received on Monday, 4 February 2002 22:40:03 UTC