Since the release of Snow Leopard Server three years ago, Apple has been steering its server platform away from large enterprise deployments. Instead Apple has redesigned OS X Server to meet the needs of the small to mid-size business market as well as the needs of Apple-centric departments or workgroups in larger organizations. That focus is very clear if you download and install Mountain Lion Server or look through the Mountain Lion Server documentation from Apple.
One of the transitions that Apple began in Lion and Lion Server, which were released last summer, was a move away from the traditional Mac management architecture that Apple has provided in OS X Server since it launched the platform more than a decade ago. In its place, Apple has built a management system for Macs that is very similar to the mobile management features available in iOS.