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UML and Data Modeling: A Reconciliation by David Hay

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The next two chapters cover similar ground. The difference is that Chapter Three offers step by step instructions for creating a conceptual entity/relationship model, while this chapter sets the stage by describing the philosophical differences between the two approaches. Among other things, here we describe the differences between architecture and design, as well as the differences between traditional data models and object models.

Impedance Mismatch

The Unified Modeling Language was introduced as the unification of multiple languages for describing not only object classes, but also processing, events, use cases, and other artifacts of the system development process. While the various notations are expected to describe the business that is paying ...

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