
This system flowchartsystem flowchart: a visual representation of processes, decisions, inputs and outputs that together form a system is a diagram for a 'cruise control' for a car. The cruise control keeps the car at a steady speed that has been set by the driver.

A system flowchart for cruise control on a car
The flowchart shows what the outcome is if the car is going too fast or too slow. The system is designed to add fuel, or take it away and so keep the car's speed constant. The outputoutput: the term denoting either an exit or changes which exit a system and which activate/modify a process (the car's new speed) is then fed back into the system via the speed sensorsensor: an automatic input device that continuously monitors a set of computer controlled parameters, eg a parking sensor detects how close a vehicle is to the nearest object and alerts the driver if the distance falls outside of the specified parameters.
Other examples of uses for system diagrams include: