Both WS-Federation and CAS are widely accepted Identity Federation standards that organizations can use to broker information on identities, identity attributes and authentication.
Using PortalGuard as an IdP (Indentity Provider) your ogranization will be able to quickly and easily implement single sign-on authentication for your users.
What a portal is and what a secure portal should be. The ins and outs of web portals and the true importance of implementing strong security behind a convenient and usable interface.
This paper takes a deep dive into the importance of identity management in the modern world, the usefulness of Active Directory, and its benefits for environments of any shape and size.