Design Patterns Explained: A New Perspective on Object-Oriented Design

Summary

In this chapter, I have shown how object orientation helps us minimize consequences of shifting requirements on a system and how it contrasts with functional decomposition.

I covered a number of the essential concepts in object-oriented programming and have introduced and described the primary terminology. These are essential to understanding the concepts in the rest of this book. (See Tables 1-3 and 1-4.)

Table 1-3. Object-Oriented Concepts

Concept	Review
Functional decomposition	Structured programmers usually approach program design with functional decomposition. Functional decomposition is the method of breaking down a problem into smaller and smaller functions. Each function is subdivided until it is manageable.
Changing requirements ...