Backward Simulation with Multiple Objectives Control.

unlike the trial-and-error as the destiny of simulation, a backward then forward simulation (BFS) technique with multiple-objectives is developed. We apply BFS to a job shop scheduling problem. The objectives are improving utilization of resources and meet the due date commitment of jobs. The system we studied is under incessant input and decision making. And the goal of this research is to derive a real time reflection, stable and controllable dispatching solution with the authentic meaning in practice for real world. In the viewpoint of scheduling technique, we are using the capability and contribution of BFS to reduce the job shop problem into a station of parallel machines scheduling problem. Then, by integrating the decisions over time we achieve the global objectives control. The objectives are utilization and available to promises instate of makespan and tardiness. The discussion in this research is implemented into a system and practice on some reality sites. The related case study report has been accomplished in an accompany paper [1]. [ABSTRACT FROM AUTHOR]