Information Roles
L0: Operational Data
- produced/consumed by an application at run time
- expressed using terms from an Ontology (L1)
- e.g. an object, a particular part
L1: Schema
- used by AD in application development process
- used to author Operational Data (L0)
- e.g. a class, AP203
L2: Schema Representation Language
- created by TDs
- used to author Ontologies (L1)
- e.g. UML, EXPRESS