Abstract
This chapter discusses how the entity–relationship (ER) and Unified Modeling Language (UML) approaches can be applied to the database life cycle, which include the requirements analysis and conceptual data modeling stages of logical database design. An example is used to illustrate the ER modeling principles developed in this chapter. Conceptual data modeling, using either the ER or UML approach, is particularly useful in the early steps of the database life cycle, which involve requirements analysis and logical
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