Individuals, Classes, Attributes, Relations, Etc
Most ontologies use the same basic set of components. The first four are the “main” ones.
- Individuals
- Instances of a class
- Classes (or “kinds”)
- A kind of thing that can have properties (nouns)
- Attributes
- Properties that members of a class can have
- Relations
- How classes or individuals can relate to others
- Restrictions
- What must be true about something to be valid
- Rules/Axioms
- Logical statements describing inferences that can be made
- Events
- Changing of attributes or relations