increased availability will all lead to increased productivity. This will be beneficial to the company and result in higher income, lower cost, less use of tied-up capital and less work hazards. The performance of a manufacturing system is to some extent settled when the actual system is built. More effort should be taken before the actual building of the system. Many systems in use today are highly sophisticated. Actually they have been so complex that some are talking about too much automation (Womack and Jones, 1996). A system that functions well will serve as the basis for manufacturing of quality products. System reliability, maintainability and dependability are key factors in influencing customer satisfaction (Madu, 1999). With the suggested method, efficiency improvement can be achieved both before and after the system is designed and built