Abstract:
Today, the integration of service system into manufacturing enterprise is very active area to create new kind of business model. The relation between production and transportation system is considered as core process in order to provide good service according to time frame constraints. To cope with these problems, the combination of production and transportation scheduling algorithm is propose in order to optimized lead times from received order until the product reach to customer site. The heuristic rules are applied consists of EDD, SPT and LPT. The hybrid heuristic is to select two smallest times order resulted from heuristic rule and then production scheduling is created. The transportation routing related to such plan is defined using best first search rule. Finally, the final plan is created by connect production and transportation plan. It becomes clear that by this model the enterprise can offer good service to their customer corresponding to time constraints. The method developed is implemented in the Thai company specialist for coated paper industry. The company has 8 machines (5 automatic machines) and 15 vehicles divided into five areas of transmission. The time of delivery and production is divided into two shift and working 24 hours a day. In this research, the area is used Bangkok and its vicinity. The result of testing is: Production schedules can be found that fit the time to produce the most. E.g. the machine has available total time to produce of 6.31 hours and can serve customer around 5 customers. The schedule of transportation of raw materials and products is the shortest route and, show arrive time of each customer.