20-05-2013, 03:43 PM
MANAGEMENT INFORMATION SYSTEM
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DATA
Data are streams of raw facts, representing event occurring in an organization or the physical environment before they have been organized and arranged into a form that people can effectively understand and use.
INFORMATION
Information is data that have been coverted or shaped into a form which is meaningful and useful context for specific end users.
Information as a concept bears a diversity of meanings, from everyday usage to technical settings. The concept of information is closely related to notions of constraint, communication, control, data, form, instruction, knowledge, meaning, mental stimulus, pattern, perception and representation.
Organization Structures
Senior management makes long-range strategic decision about products and services as well as ensures financial performance of the firm.
Middle management carries out the programs and plans of senior management.
Operation management is responsible for monitoring the daily activities of the business.
Characteristics of decision support system
1.Integrates data with decision-making models.
2.Solves semi-structured and unstructured.
3.support a wide variety of decision making processes and styles.
4.facilitates decision making under dynamic condition.
Management Information Systems (MIS)
Management information system (MIS)
An MIS provides managers with information and support for effective decision making, and provides feedback on daily operations
Output, or reports, are usually generated through accumulation of transaction processing data
Each MIS is an integrated collection of subsystems, which are typically organized along functional lines within an organization
EXECUTIVE INFORMATION SYSTEM
E.I.S. are Information Systems that combine many of the features of the Management Information systems and Decision Support Systems.
The first goal of E.I.S. is to provide executives to easy access to Information about the firm’s critical success factors.
Expert System
An expert system is a knowledge-based information system that uses its knowledge about a specific, complex application area to act as an expert consultant to end user.
System provide answers to questions in a very specific problem area by making human life inferences about knowledge contained in a specialized knowledge base.