The system concept of MIS is one of optimizing the output of the organisation by connecting the operating subsystems through the medium of information exchange.
* The MIS is defined as a system which provides information support for decision-making in the organization.
* The MIS is defined as an integrated system of man and machine for providing the information to support the operations, the management and the decision-making function in the organization. * The MIS is defined as a system based on the database of the organization evolved for the purpose of providing information to the people in the organization.
* The MIS is defined as a computer-based information system.
ROLE OF MANAGEMENT INFORMATION SYSTEM
The role of the MIS in an organization can be compared to the role of heart in the body. The information is the blood and MIS is the heart. In the body the heart plays the role of supplying pure blood to all the elements of the body including the brain. The heart work faster and supplies more blood when needed. It regulates and controls the incoming impure blood, processed it and sends it to the destination in the quantity needed. It fulfils the needs of blood supply to human body in normal course and also in crisis.
The MIS plays exactly the same role in the organization. The system ensures that an appropriate data is collected from the various sources, processed and send further to all the needy destinations. The system is expected to fulfill the information needs of an individual, a group of individuals, the management functionaries: the managers and top management.
SIGNIFICANCE OF MIS
It goes without saying that all managerial functions are performed through decision-making; for taking rational decision, timely and reliable information is essential and is procured through a logical and well structured method of information collecting, processing and disseminating to decision makers. Such