A DATA AND OPERATION MODEL FOR ADVANCED DATABASE-SYSTEMS

This paper introduces a model that combines and extends capabilities of relational and object oriented systems. Within a simple, statically-typed framework, the model supports abstract data types (ADTs), a multiple inheritance ordering on ADTs based on behavioral similarity, multi-targeted generic operations, polymorphic methods, type-independent persistence, and set-oriented rules over shared objects, values, classes, and relations. The model maintains a clear separation between interface and implementation, and resolves currently open problems for typed OODBs.