Summary
SOA is all about architecture, not products. The point of this book was to demonstrate real, concrete examples of the principles and patterns of SOA through the use of BizTalk Server 2013 and Microsoft Azure. Using these technologies doesn't automatically make you service oriented, and using legacy technologies doesn't mean you are not service oriented. Even your choice of transport and protocols isn't enough to qualify you as being service oriented or not. What does qualify a solution as being service oriented is an effort to internalize the core concepts of loose coupling, abstraction, encapsulation, interoperability, and reuse and aggressively apply them wherever they makes sense. Products like BizTalk Server, Azure App Services, Service Bus, ASP.NET Web API, WCF and protocols or architectures such as SOAP/REST are simply tools that allow you to apply your service-oriented principles in a software solution.
We hope that this book triggered new ideas in your mind...