The Object-Oriented Thought Process, Fourth Edition

An E-Business Example

It’s sometimes hard to convince a decision maker, who may have no development background, of the monetary savings of code reuse. However, when reusing code, it is pretty easy to understand the advantage to the bottom line. In this section, we’ll walk through a simple but practical example of how to create a workable framework using inheritance, abstract classes, interfaces, and composition.

An E-Business Problem

Perhaps the best way to understand the power of reuse is to present an example of how you would reuse code. In this example, we’ll use inheritance (via interfaces and abstract classes) and composition. Our goal is to create a framework that will make code reuse a reality, reduce coding time, and reduce maintenance—all ...