4.9. (Optional) Software Engineering Case Study: Identifying the Classes in the ATM Requirements Document

Now we begin designing the ATM system that we introduced in Chapter 3. In this section, we identify the classes that are needed to build the ATM system by analyzing the nouns and noun phrases that appear in the requirements document. We introduce UML class diagrams to model the relationships among these classes. This is an important first step in defining the structure of our system.

Identifying the Classes in a System

We begin our OOD process by identifying the classes required to build the ATM system. We will eventually describe these classes using UML class diagrams and implement these classes in Visual Basic. First, we review the requirements ...

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