Suggested Upper Merged Ontology http://teknowledge.com/ontology/SUMO.daml http://www.ksl.stanford.edu/software/IW/registry/SRC/IW-TEAM.daml Mon Apr 14 13:37:56 PDT 2003 Mon Apr 14 13:42:14 PDT 2003 "An ontology is similar to a dictionary or glossary, but with greater detail and structure that enables computers to process its content. An ontology consists of a set of concepts, relations, and axioms that formalize a field of interest. An upper ontology is limited to concepts that are meta, generic, abstract or philosophical, and hence are general enough to address (at a high level) a broad range of domain areas. Concepts specific to particular domains are not included in an upper ontology, but such an ontology does provide a structure upon which ontologies for specific domains (e.g. medicine, finance, engineering, etc.) can be constructed." (http://ontology.teknowledge.com/)