Also known as: Kl one
KL-ONE is a knowledge representation system and language based on structured concepts, roles, and relationships. It influenced description logics and ontology modeling by representing domain knowledge in taxonomic and relational forms.
A well-known knowledge representation system in the tradition of semantic networks and frames; that is, it is a frame language. The system is an attempt to overcome semantic indistinctness in semantic network representations and to explicitly represent conceptual information as a structured inheritance network.