Article:		Something Useful This Way Comes
Subject:		"data model"?
Date:		2004-06-10 05:27:34
From:		Kendall Clark
Response to: "data model"?
I quote the RDF Concepts and Abstract Syntax standard: -- 3.1 Graph Data Model The underlying structure of any expression in RDF is a collection of triples, each consisting of a subject, a predicate and an object. A set of such triples is called an RDF graph (defined more formally in section 6). This can be illustrated by a node and directed-arc diagram, in which each triple is represented as a node-arc-node link (hence the term "graph"). -- However, I will say that I sorta ran together in my piece the RDF data model, which is a graph composed of triples, and the formal semantics of RDF, which is expressed in terms of model theory, which is a kind of logic of sets. But I think that running these together doesn't hurt my central claim, which is that, whatever one thinks of RDF's canoncial XML serialization, it has a formal semantics behind it, and that's one very big difference between it and XML plus namespaces.

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