THE ROLES OF A DATA MODEL
Conceptual data models can be developed to understand the information requirements of a business and to form the basis for a physical database design to support the business.
Understanding information requirements
In the first case, the data model is used to document the information that is used by the business and the way that that information is grouped and related. The aim here is either to highlight inconsistencies in the information used by the business or, if the conceptual data model is being developed as a prelude to the development of an information system, to enable an expert in the business to agree that all the information requirements have been completely and faithfully documented. Business experts could ...
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