Titlebook: Entity-Relationship Approach - ER ‘94. Business Modelling and Re-Engineering; 13th International C Pericles Loucopoulos Conference proceedi

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s and relations of database objects that ensure the integrity of data. Therefore, they should be obeyed by every object, but as in real-life, there are some exceptions to this rule. Object-oriented databases provide rich semantic constructs, adequate to model real-world relations. Inheritance of con

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Transnational Spaces of India and Australiao evolve by assuming transient behavior, while preserving their identity. This mechanism can be used to implement multi-faceted, or polymorphic, objects by allowing the same object to be represented under different perspectives — possibly at discrete points in time — with each perspective having its

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e same time, relational technology has gained leverage in most businesses. There exist already several proposals to combine object-oriented programming with relational database systems. Yet, existing approaches do not support necessary combinations of object-oriented and relational technology in con

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US and UK Television, 1970 to 2010,ity, inheritance, method, and complex object structure. Complex object structures raise a consistency problem for derived objects. To the best of our knowledge, no method has been proposed to do a static check of the consistency of deductive programs dealing with complex objects. In this paper we pr

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