Treffer: OMS/Java: Model extensibility of OODBMS for advanced application domains.

We show how model extensibility of object-oriented data management systems can be achieved through the combination of a high-level core object data model and an architecture designed with model extensibility in mind. The resulting system, OMS/Java, is both a general data management system and a framework for the development of advanced database application systems. All aspects of the core model — constructs, query language and constraints — can easily be generalised to support, for example, the management of temporal, spatial and versioned data. Specifically, we show how the framework was used to extend the core system to a temporal object-oriented database management system. [ABSTRACT FROM AUTHOR]