Match-Up Strategies for Job Shop Rescheduling
We investigate the problem of integrating new rush orders into the current schedule of a real world job shop floor. Satisfactory rescheduling methods must keep stability of the shop, by introducing the fewest number of changes in the ordering of operations, while maintaining the same levels of the schedule performance criteria. This paper introduces a number of match-up strategies that modify only part of the schedule in order to accommodate new arriving jobs. These strategies are compared with the right-shift and the total-rescheduling methods, which are optimal regarding stability and performance, but ineffective for performance and stability, respectively. Statistical analysis indicates that the match-up strategies are comparable to right-shift for stability, and as good as total-rescheduling for performance.
KeywordsSchedule Problem Completion Time Parallel Machine Idle Time Machine Breakdown
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- 3.Bean, J., Birge, J.: Match-up real-time scheduling. In: Proceedings of the Symposium on Real-Time Optimization in Automated Manufacturing Facilities, National Bureau of Standards, Special Publication 724, pp. 197–212 (1986)Google Scholar
- 5.Birge, J., Dempster, M.: Optimality conditions for match-up strategies in stochastic scheduling. Technical Report 92 - 58, Department of Industrial and Operations Engineering, The University of Michigan (1992)Google Scholar
- 8.Smith, S., Muscettola, N., Matthys, D., Ow, P., Potvin, J.: Opis: an opportunistic factory scheduling system. In: IEA/AIE 1990: Proceedings of the 3rd international conference on Industrial and engineering applications of artificial intelligence and expert systems, pp. 268–274. ACM Press, New York (1990)CrossRefGoogle Scholar
- 9.Sadeh, N.: Micro-opportunistic scheduling: The micro-boss factory scheduler. In: Intelligent Scheduling, ch. 4, pp. 99–136. Morgan Kaufmann, San Francisco (1994)Google Scholar
- 10.Smith, S.: Reactive scheduling systems. In: Brown, D., Scherer, W. (eds.) Intelligent Scheduling Systems, Kluwer Academic Publishers, Dordrecht (1995)Google Scholar
- 15.Miller, R.: Simultaneous Statistical Inference. Springer, New York (1991)Google Scholar