Windows Workflow Foundation (WF) is Microsoft's programming model for building workflow-enabled applications in the Windows operating system. It includes a namespace, a workflow engine, and design tools that can be used with Visual Studio . Workflow is an extremely important type of application that has been difficult to build on the Microsoft platform. Workflow Foundation is a major element of the Framework 3.0 platform that enables application developers to build these types of applications.

In Building Applications with Windows Workflow Foundation: State Machine and Rules-Driven Workflows , author, MVP, speaker, and leading consultant Michael Stiefel introduces readers to the basics of Windows Workflow foundation.