Zope implementation of topic maps.
Gnowledge Networking and Organizing System by nagarjuna on 2002/07/24 [Zope Products] seems to be an implementation of topic maps as a Zope product.
Interestingly, it claims to have implemented facets, which an article by Steve Pepper, CEO of Ontopia suggests have been dropped in the XML version of topic maps because "... information resources could also be subjects (and hence topics). This rendered the concept of facets superfluous since metadata properties can now be assigned to a resource as characteristics of the topic that represents the resource."
I read that paper the other night, and I need to go through it again because I couldn't work out have many of the different aspects were actually distinct. I'm sure it's because I was knackered, except in the case of facets - the note referenced above unfortunately comes at the end of the section so I only read it after being confused by them for a while. [Hamish's Hydroinformatics Weblog]
8:20:26 AM 
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