Object-Oriented Analysis and Design with Applications, Third Edition

Chapter 2The Object Model

Object-oriented technology is built on a sound engineering foundation, whose elements we collectively call the object model of development or simply the object model. The object model encompasses the principles of abstraction, encapsulation, modularity, hierarchy, typing, concurrency, and persistence. By themselves, none of these principles are new. What is important about the object model is that these elements are brought together in a synergistic way.

Let there be no doubt that object-oriented analysis and design is fundamentally different than traditional structured design approaches: It requires a different way of thinking about decomposition, and it produces software architectures that are largely outside the realm ...