The efficient and effective implementation of the policies and tasks necessary to satisfy a firm's customers, employees, and management (and stockholders, if a publicly owned company).

In System Manager, the discipline that manages the use of systems and resources to support enterprise information-processing work loads.

1) The planning, scheduling, and control of the activities that transform inputs into finished goods and services. 2) A field of study that focuses on the effective planning, scheduling, use, and control of a manufacturing or service organization through the study of concepts from design engineering, industrial engineering, management information systems, quality management, production management, inventory management, accounting, and other functions as they affect the operation.