Recognizing Entities, Attributes, and Dependencies
As soon as you start looking for entities within your system, you’ll find them.
You can most readily identify entities by looking for things you can create. For example, if you are working with a GUI application, look for any place where you can create new objects by choosing New from a menu or by clicking on a plus icon. If you are working with an API, look for instances where you call a constructor.
Entities have attributes, data elements that describe some aspect of the entity. An email message has a sender, a subject, and a body. An inventory item has a name, a description, and a price. As you identify entities, list their attributes. Varying attributes (see Chapter 4, Find Interesting ...
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