"Geneva" is the code name for Microsoft's claims-based access platform (CBA) which comprises three things:

• "Geneva" Framework, formerly known as code name "Zermatt"
• "Geneva" Server
• Windows CardSpace "Geneva", formerly known as CardSpace 2

Geneva Framework is a framework for building claim-based applications and services, simplifying how they work with claims at runtime to authorize access; is a framework for building custom security token services; and supplies functionality for issuing managed information cards (for CardSpace and other identity selectors) and functionality for building CardSpace-enabled ASP.NET applications.

Geneva Server is the next generation ADFS to support federation not only for web applications (passive federation), but also services (active federation). It is an enterprise worthy security token service that can handle federation and claims transformation.

CardSpace Geneva is the next generation of CardSpace.

I'll be writing about all of these technologies over the next while, starting with some upcoming articles in MSDN on Geneva Framework.