Conceptual Data Model : Concept, Formal Bases, and Implementation Issues

The investigation subjects of this paper are the implementation issues of a conceptual data model. An approach to implement the concept of the considered conceptual data model is proposed. The discussed conceptual data model concept is based on the behavioral and data definition symbols to model conceptual entities. The result of formalization of these symbols is content dictionaries. An important feature of the considered conceptual data model is its extensibility property. The extension is achieved by introducing new symbols into the conceptual data model. Thus, the result of extension of the considered conceptual data model is reduced to create new content dictionaries to support new concepts. The conceptual data model is defined as the union of all content dictionaries.