A Generalised Object-Oriented Database Model

A new formal framework for a generalised object-oriented database model that is able to cope with fuzzy and uncertain information is presented. The generalised model is obtained as a generalisation of a crisp object-oriented database model that is compliant with the ODMG de facto standard and is built upon an algebraic type system and a constraint system. The novelty of our approach is the integration of (generalised) constraints to enforce integrity rules and to specify the formal semantics of the database model.

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