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Topic Maps

by Dan Corwin, 03/08/05
XTM complements RDF and overlaps it. Associations among Topics are central. The paradigm is simpler and more expressive than RDF - and less bound up with formal logic issues and URIs. As a metadata starting place, it's a good choice:

Reference Links - Good XTM Overview
The 1.0 Standard - Outstandingly Readable
Comparing XTM - to RDF under DAML/OWL
Latest Data Model - Standard Application Schema
Expert Discussion - of ISO & XTM Standards
Objects via TMAPI - Access TMs in Java
Ontopia downloads - A free way to try it out
Techquila products - Several are XTM focused
TM4J: XTM engine - Open Source Java


Lexikos Corporation
Boston & Knoxville
Email: Dan@Lexikos.com