What is System?

•         A system is a set of interacting or interdependent components forming an integrated whole or a set of elements and relationships which are different from relationships of the set or its elements to other elements or sets.

•         Some systems share common characteristics, including

•         A system has structure, it contains parts (or components) that are directly or indirectly related to each other;

•         A system has behavior, it contains processes that transform inputs into outputs (material, energy or data);

•         A system has interconnectivity: the parts and processes are connected by structural and/or behavioral relationships.

•         A system's structure and behavior may be decomposed via subsystems and sub-processes to elementary parts and process steps.

•         The term system may also refer to a set of rules that governs structure and/or behavior. Alternatively, and usually in the context of complex social systems, the term institution is used to describe the set of rules that govern structure and/or behavior.

•         In management information system, we are usually concerened with man-mad systems involving input,processes and output as represented .