- AKA: Concept Description.
- It can include: a Concept Name, a Context Statement, Examples, Counter-Examples.
- It can make a direct reference to another Concept Definition (have a Concept Outlink to that Concept)
- It can be directly referenced by another Concept Definition (have a Concept Inlink to that Concept)
- It can range from being a Complete Concept Definition to being a Stub Concept Definition.
- It can be:
- See: Semi-Structured Data Record.
- (Borgida & Brachman, 2003) ⇒ Daniele Nardi, and Ronald J. Brachman. (2002). “An Introduction to Description Logics.” In: (Baader et al., 2003)
- The basic form of declaration in a TBox is a concept definition, that is, the definition of a new concept in terms of other previously defined concepts. For example, a woman can be defined as a female person