Danny Ayers is down with RDF

Danny Ayers has written an article for XML.Com on article for XML.Com on extending RSS that covers the selling points of an RDF approach.

Ayers makes RDF formats, which are called vocabularies, sound like an object-oriented inheritance hierarchy:

A common scenario is that a general purpose vocabulary contains a term close to what we're looking for, but our requirement is more specific. The solution here is to define our own term as a subclass or subproperty of the existing term (depending whether the term applies to an entity or a relationship between entities). Thus the child class (or property) takes on the same characteristics as its parent, in addition to anything specific to the child.

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