the fact that Just in time manufacturing "is a philosophy of eliminating non value added activities and increasing product quality throughout the manufacturing process" (Meigs, Bettner, p. 804).But how can we control if our Just in time manufacturing system is efficient? The answer to that is given by Meigs and Bettner : "A widely used measure of efficiency in a Just in time system is the Manufacturing Efficiency ratio" (p. 805). This ratio is given by the Value Added Activities time over the Cycle time. The cycle time is the time of processing, storing, moving and inspecting that is spent on the material before their usage. If the ratio is equal to one then we have the perfect Manufacturing efficiency ratio. This means that the smaller the number the less efficient is our Just in Time manufacturing method and the larger are the Value added activities.Finally we can conclude that if we perform the Just in Time manufacturing the right way we diminish cost and that is the ideal case for every company of producing nature. Toyota once again initiated a revolutionary technique on the field of Management that was widely copied by many companies around the world....
