Windows workflow foundation

BANGALORE, INDIA: Windows Workflow Foundation (WF) is a component of .NET framework 3.0 and 3.5 and is part of Windows platform for developers. To understand this component let's first get introduced to a workflow. Business process consists of number of activities related to app development, and specifying these activities in a series of steps is known as a workflow. WF provides a common foundation for building workflow-based app on Windows.

Design schemes in app development are always separated from actual codes to be implemented, making design schemes mere documentation after app is developed. To overcome this separation, Microsoft came out with Windows WF, which can be used in document mgmt, business cycles, or page flow.WF is easy to understand as it gives a visual representation of process and extending existing workflow is much simpler in it.

Components of WF
WF consists of number of components-activity that is a unit of work;workflow, a collection of activities; workflow designer, used to create graphical representation of workflow; base activity library, a collection of activities we can use in our workflow; runtime engine, to execute workflow; runtime services to support workflow execution; and host process which is a Windows app that hosts WF runtime engine and workflow it executes.

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