Mastering Active Directory - Second Edition

Single sign-on (SSO)

In an organization, there can be many different applications in use. Each of these applications may have a different authentication mechanism. It will be difficult to maintain different user credentials for authentication on different applications. Most application vendors now support integration with Active Directory for authentication. This means that with Active Directory credentials, you can authenticate on different systems and applications that are used by your organization. You will not need to keep typing your credentials in order to get access. Once you authenticate on a computer, the same session will be used to authenticate other Active Directory-integrated applications.