General Formal Ontology (GFO)    (3JN5)

see: http://www.onto-med.de/ontologies/gfo/    (3JN6)

The General Formal Ontology is a top-level ontology for conceptual modeling, which is being constantly further developed by Onto-Med. It includes elaborations of categories like objects, processes, time and space, properties, relations, roles, functions, facts, and situations. Moreover, we are working on an integration with the notion of levels of reality in order to more appropriately capture entities in the material, mental, and social areas. Outstanding features of GFO are:    (3JN7)

Ref. also: http://en.wikipedia.org/wiki/General_formal_ontology    (3JND)