Introduction on ontologiesΒΆ

What is an ontology?

An ontology defines a set of representational primitives with which to model a domain of knowledge or discourse. The representational primitives are typically classes (or sets), attributes (or properties), and relationships (or relations among class members). The definitions of the representational primitives include information about their meaning and constraints on their logically consistent application. (Source: http://tomgruber.org/writing/ontology-definition-2007.htm)