Management information is an important input for efficient performance of various
managerial functions at different organization levels. The information system facilitates
decision making. Management functions include planning, controlling and decision making.
Decision making is the core of management and aims at selecting the best alternative to
achieve an objective. The decisions may be strategic, tactical or technical. Strategic decisions
are characterized by uncertainty. They are future oriented and relate directly to planning
activity. Tactical decisions cover both planning and controlling. Technical decisions pertain
to implementation of specific tasks through appropriate technology. Sales region analysis,
cost analysis, annual budgeting, and relocation analysis are examples of decision-support
systems and management information systems.