Data Modeling
Data is normally organized into an information system. This system can be compared to something as simple as a loose-sheet binder, however this book describes the data design process in the context of computer-based information systems, or databases. Moreover, databases follow a design model, and we will use the most popular one—the relational model.
The complete data collection of an enterprise is larger than what our model will encompass.
We will build a model that represents only a subset of the data spectrum. The question is which subset? We'll see in Chapter 2 that we must set boundaries to the analyzed system's data scope.
To build ...
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