WWF(Windows Workflow Foundation )

1. Visual Workflow Designer: Integrated visual designer for creating workflows visually.

2. Workflow Activities: Predefined units of work for building workflows.

3. Sequential and State Machine Workflows: Support for both sequential and state machine workflows.

4. Workflow Hosting: Ability to host workflows within various types of applications.

Before learning Windows Workflow Foundation (WF), it's beneficial to have the following skills:

1. C# Programming: Proficiency in C# programming language, as WF is primarily used with .NET applications and is often implemented using C#.

2. .NET Framework: Understanding of the .NET Framework, including concepts like classes, interfaces, inheritance, and generics.

3. Visual Studio: Familiarity with Microsoft Visual Studio IDE for .NET development, as WF development is typically done within Visual Studio.

4. Workflow Concepts: Basic understanding of workflow concepts and principles, including sequential and state machine workflows, activities, and transitions.

By learning Windows Workflow Foundation (WF), you gain the following skills:

1. Workflow Design: Ability to design and create workflows for automating business processes within .NET applications.

2. Activity Development: Proficiency in developing custom activities to encapsulate specific units of work within workflows.

3. Workflow Hosting: Understanding of how to host workflows within various types of applications, including Windows Forms, WPF, ASP.NET, and Windows services.

4. Integration: Knowledge of integrating workflows with other .NET technologies and frameworks, such as WCF, WPF, and Entity Framework.