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O

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Ontology

Context

Ontology is part of metaphysics.

Definition

The word ontology refers to two things:

  1. A study of the subject of the categories of things that exist or may exist in some domain. Thus ontology is the study of categories. (Cf. biology, which is the study of living things, and theology which is the study of knowledge pertaining to God).
  2. The product of such a study is called an ontology.

The product of an ontological study will as a minimum come up with a type hierarchy. It may also come up with a relation hierarchy, as is the case in conceptual graph-theory. These two combined will be called an ontology.

Related terminology


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