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Design Patterns Explained: A New Perspective on Object-Oriented Design, Second Edition by Alan Shalloway, James R. Trott

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Chapter 8. Expanding Our Horizons

Overview

In previous chapters, I discussed three fundamental concepts of object-oriented design: objects, encapsulation, and abstract classes. How a designer views these concepts is important. Unfortunately, the traditional ways are very limiting.

In this chapter, I step back and reflect on topics discussed earlier in the book and introduce some new ones. My intent is to describe a fresh way of seeing object-oriented design, a perspective that comes from understanding design patterns. Then I describe the essential features of high-quality code. These features are emphasized by proponents of agile coding methods (such as eXtreme programming and test-driven development). Interestingly, ...

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