A new model for data base abstraction
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This research is concerned with the development of a new model of data base abstraction that is more generalized than the previous models at the discourse level. The data abstraction in this model consists of two parts: concepts and their relationships. Eight different types of relationships have been proposed. Each relationship comes with a set of conditions and a set of storage integrity rules. They are developed from the interaction among data items and the levels of organizational activities. © 1982.
author list (cited authors)
De, P., Sen, A., & Gudes, E.