Chapter 4. Implementing a WCF Service in the Real World

In the previous chapter, we created a basic WCF service. The WCF service we created, HelloWorldService, has only one method, called GetMessage. Because this was just an example, we implemented this WCF service in one layer only. Both the service interface and implementation are within one deployable component.

Note that the service we will create in the next two chapters is only a simplified version of a real-world WCF service. In a real-world situation, there is no doubt that the WCF service would contain more custom scenarios, more business logics, and more data constraints. For learning purposes, here we will just create a WCF service in three layers, with minimum business logic and some basic functionality. After you have acquired the basic skills to create the framework for a layered WCF service, you can customize this solution to your own needs.

Another thing I want to mention here is the design pattern that the next two chapters...