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The present paper discusses the scheduling of flexible manufacturing systems (FMSs) which is one of the most attractive areas for researchers and practitioners. Unlimited progress has been made in the layout design with integrated scheduling. In this paper we focused on production routing and scheduling of jobs within a FMS. The major objective is to develop a techniques that minimizes the manufacturing make span time, job completion time, which is optimizes the completion time of all jobs and minimize the idle time. The proposed techniques can also be extended to problems of minimizing the maximum tardiness and minimizing the absolute deviation of meeting due dates, among others. With increased competition in the global market, manufacturers are faced many problem such as reduced profit margins and the increase the need of productivity. Scheduling is one way to meet this need to implement a flexible manufacturing system (FMS). Scheduling is an important aspect in the overall control of the FMS.