By aggregating data points across all enterprise systems, individual employees get answers based on the most up-to-date information about themselves and their broader IT environment. As the diagram suggests, identity mapping is the process of using defined relationships between user identities in an enterprise such that applications and operating systems can map from one user identity to another related user identity. The ability to map between identities is essential to single sign-on enablement, as it allows one to separate the process of authentication from that of authorization. For a company with tens of thousands of employees, each with dozens of passwords, the easiest solution is to send everyone a blanket reminder to update their credentials.
