Design Patterns Explained: A New Perspective on Object-Oriented Design, Second Edition

Part IAn Introduction to Object-Oriented Software Development

Part Overview

In this part

This part introduces you to a method for developing object-oriented software that is based on patterns—the insights and best practices learned by designers and users over the years—and on the modeling language (UML) that supports this method.

I will not follow the approach of the 1980s, where developers were simply told to “find the nouns in the requirement statements and make them into objects.” In that approach, encapsulation was defined as “data hiding,” and objects were defined as “things with data and behavior used to access and manipulate those data.” This was (and is) a limited view, constrained as it is by a focus on how to implement objects. ...