Chapter 0: Design Challenges, Middleware Solutions, and ACE

This chapter describes the paradigm shift that occurs when transitioning from stand-alone application architectures to networked application architectures. This shift yields new challenges in two categories: those in the problem space that are oriented to software architecture and design and those in the solution space that are related to software tools and techniques used to implement networked applications. This chapter first presents a domain analysis of design dimensions affecting the former category, and the middleware that is motivated by and applied to the latter category. The chapter then introduces the ACE toolkit and the example networked application that's used to illustrate the solutions throughout this book.

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