Chapter 2 Conceptual Data Model Basics
When designing a database, the design process normally starts at the conceptual level. At the conceptual level, you do not need to consider the details of actual physical implementation.
A CDM represents the overall logical structure of a database, which is independent of any software or data storage structure. A conceptual model often contains data objects not yet implemented in the physical database. It gives a formal representation of the data needed to run an enterprise or a business activity.
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