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ONTOLOGY (1) (Preferred term)
In computer science, an ontology is a data model that represents a domain and is used to reason about the objects in that domain and the relations between them.
Ontologies are used in artificial intelligence, the semantic web, software engineering and information architecture as a form of knowledge representation about the world or some part of it.
Ontologies generally describe:
- Individuals: the basic or "ground level" objects
- Classes: sets, collections, or types of objects
- Attributes: properties, features, characteristics, or parameters that objects can have and share
- Relations: ways that objects can be related to one another
Source: Extract from Wikipedia