On Fri, 07 Jan 2005 07:48:25 -0800, Tim Bray <Tim.Bray@xxxxxxx> wrote: Extensibility via a mapping to RDF seems to me to add a > lot of complexity (most people have never bothered to learn graph > theory) without any real benefit. -Tim btw, here's quite a good RDF tutorial which doesn't involve graph theory: http://www.xml.com/pub/a/2001/01/24/rdf.html -- http://dannyayers.com