Windows Identity Foundation will help .NET developers build claims-aware applications that externalize user authentication from the application, improving developer productivity, enhancing application security, and enabling interoperability.

Developers can enjoy greater productivity, using a single simplified identity model based on claims. They can create more secure applications with a single user access model, reducing custom implementations and enabling end users to securely access applications via on-premises software as well as cloud services.
 
Finally, they can enjoy greater flexibility in application development through built-in interoperability that allows users, applications, systems and other resources to communicate via claims.

Requirements:

· Microsoft Internet Information Services (IIS) 7.0
· Microsoft .NET Framework 3.5
· Visual Studio 2008