Even though the two examples in this chapter didn’t do anything extremely exciting, both covered some key points, considering Windows Workflow Foundation is a new software development paradigm. First, you learned how to start a new workflow project in Visual Studio 2005. In this case, the workflow gets called from a standard .NET console application. This console application is referred to as a host. Workflow hosting is an important topic that is discussed further in Chapter 5.
In addition, you were introduced to a very important piece of the workflow framework: activities. Activities are the reusable building blocks for composing workflows. Chapter 6 covers them in detail.