This chapter introduced you to the core technology of Windows Workflow Foundation. Items such as activities, runtime services, and rules make up the core of the workflow platform. There is also a rich set of functionality provided to developers out of the box. However, to ensure that Windows Workflow Foundation is able to handle just about any scenario related to process management, many core pieces of the architecture are extensible.
Windows Workflow Foundation can also work with many other technologies that provide complementary functionality. You can combine workflows with systems such as SQL Server, Windows Communication Foundation, and ASP.NET to build process-oriented systems.