Concept Diagram

The first step in applying the systems approach to EMS problems is to represent the system chosen for EMS implementation. Systems can be represented using a simple technique called a “concept diagram” or a “mind map.” A concept diagram is a graphical representation of a system showing its subsystems and elements in a hierarchical manner. For example, a simple concept diagram of an art classroom can be drawn as shown in the figure below:

Concept diagram is an effective tool for brainstorming about the components of a system and their hierarchies. Once a system is represented graphically using a concept diagram, the information can be used to analyze the system further, and identify the interactions between its components and their activities.

Scope of a System

The concept diagram is also useful to define the “scope” of the system. The scope defines the boundaries of the system within which a problem will be defined for solving. The things outside the boundaries will not be considered in solving the problem. For example, if the art classroom is disposing off too much cleaning solvents and cleaning towels, then the scope of the problem may be restricted to the art classroom, but not the rest of the school.


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