CHAPTER 3

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The Language of Data Modeling

I prefer drawing to talking. Drawing is faster, and leaves less room for lies.

—Le Corbusier, Swiss-French architect, designer, painter, urban planner

A data model is one of the most important tools in the design process, but it has to be done right. It very often starts as a sketch of the data requirements that you use to communicate with the customer, and is refined over and over until you get it right. However, a common misconception is that a data model is only a picture of a database. That is partly true, but a model is truly so much more. A great data model includes nongraphical representations of ...

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