System is a collection of interrelated parts that work together in harmony to achieve one or more common purposes.

A system normally has subsystems and functions within an environment.

Some characteristics of systems:

  • Every system has a purpose.
  • Most systems have five components: input, processes, output, feedback, and control.
  • Systems are made up of subsystems, whose goals are referred to as subgoals.
  • The goals of a system are more important the subgoals of its subsystems.
  • Subsystems are guided both by their individual goals and by their relationships with other subsystems within the system.
  • Subsystems must work together in harmony to achieve system goals.

Definition 2

System— A functionally, physically, and/or behaviorally related group of regularly interacting or interdependent elements; that group of elements forming a unified whole. 


Webster Dictionary Meaning

1. System
- An assemblage of objects arranged in regular subordination, or after some distinct method, usually logical or scientific; a complete whole of objects related by some common law, principle, or end; a complete exhibition of essential principles or facts, arranged in a rational dependence or connection; a regular union of principles or parts forming one entire thing; as, a system of philosophy; a system of government; a system of divinity; a system of botany or chemistry; a military system; the solar system.
- Hence, the whole scheme of created things regarded as forming one complete plan of whole; the universe.
- Regular method or order; formal arrangement; plan; as, to have a system in one's business.
- The collection of staves which form a full score. See Score, n.
- An assemblage of parts or organs, either in animal or plant, essential to the performance of some particular function or functions which as a rule are of greater complexity than those manifested by a single organ; as, the capillary system, the muscular system, the digestive system, etc.; hence, the whole body as a functional unity.
- One of the stellate or irregular clusters of intimately united zooids which are imbedded in, or scattered over, the surface of the common tissue of many compound ascidians.
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