Rating: 

SOA in Practice covers a lot of ground and provides definitions and descriptions of the complex world of SOA. Initially, the book describes the motivation to adapt a service-oriented architecture. It then proceeds into a discussion of the elements of SOA and reiterates that SOA is no silver bullet.

The author makes it clear that SOA is an ideal solution for a specific set of circumstances: "heterogeneous distributed systems with different owners." If that simple definition doesn't fit your organization, SOA may not be for you.

If you are still committed to learning about or implementing SOA after understanding what it is and what it can (and can't) do for your organization, read on! The remainder of the book present an in-depth look at all elements of service-oriented architecture.

I particularly enjoyed the chapters covering the enterprise service bus and message exchange patterns. In a nutshell, they show some of the many possibilities of how SOA can be implemented - indicating that there is no 'one right way' to do it.

Web Services (not a requirement of SOA) is discussed, as well as the management of services, model-driven service development, and advice on establishing SOA in your enterprise.

The book is light on technical details. This is obviously intentional as its core focus is not the nitty-gritty of how to make it work. It is more of a high-level, conceptual view of what SOA is all about and how it can help your enterprise solve difficult challenges when faced with integration of heterogeneous systems.