Rational Directory Server can interact with an existing corporate LDAP server, as a stand-alone solution, or in the Operating System mode with operating system users. Rational Directory Server supports Single Sign-On between supported Rational applications.
When you log in to Rational Focal Point™, it is registered with Rational Directory Server. Registration gives Rational Directory Server access to Rational Focal Point website and its web services API. You can then create and store relationships in Rational Directory Server for the objects in Rational Focal Point and supported Rational applications. When Rational Focal Point is closed, it is unregistered in the Rational Directory Server.