Towards a Core ORM2 Language (Research Note)

The introduction of a provably correct encoding of a fragment of ORM2 (called ORM2 zero ) into a decidable fragment of OWL2, opened the doors for the definition of dedicated reasoning technologies supporting the quality of the schemas design. In this paper we discuss how to extend ORM2 zero in a maximal way by retaining at the same time the nice computational properties of ORM2 zero .