Learn by pragmatic example how to create effective designs composed of interfaces to objects, components and services. You'll learn what polymorphism and encapsulation really mean, and how to use these ideas more effectively. See how to create better interfaces using agile development techniques, and learn the subtle differences between implementing an interface and inheriting an implementation. Take a fresh, modern view of Design By Contract and class responsibilities. Understand the basis of a service-oriented architecture, including stateful versus stateless interfaces, procedural versus document models, and synchronous versus asynchronous invocations.

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