Enterprise Manager is designed as a Microsoft Management Console (MMC) snap-in. The MMC provides a common framework for presenting and managing management applications. For example, you could snap in Enterprise Manager to the same MMC console as SQL Server's Enterprise Manager.
MMC itself provides no management behavior, but rather acts as a host for management applications. It provides a multiple-document interface (MDI) in which each window is a console. Each console can contain one or more administrative components that supply the management behavior.
Content Engine system administrators can save different MMC configurations with customized functions for different sets of operators and administrators. For example, a backup operator could be given a customized MMC console that includes just the backup and restore functionality needed for a particular job.
See Concepts: Enterprise Manager for more information.