(1) In OSI, the process of monitoring, coordinating, and controlling resources within open systems.
(2) In System Manager, all of the actions and procedures that accomplish the business support activity of making information systems services available. Information systems services include host, application, network, and data services.
(3) Functions in the application layer related to the management of Open Systems Interconnection (OSI) resources and their status across all layers of the OSI architecture.