Entity-roles model and object-oriented Knowledge/Data Bases

Abstract

A Model, called “Entity-Roles” is proposed in this paper in which the world of interest is viewed as some mathematical structure. With respect to this structure, a First Order (three-valued) Logic Language is constructured. Any world to be modelled can be logically specified in this Language. The integrity constraints on the database and the deducing rules within the Database world are derived from the proper axioms of the world being modelled.

Keywords

expert systems / data model / object-orientation / database logic / deductive query

References

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