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Phone camera lens module is assembled with a barrel, multiple lenses, multiple spacers and a shield. The major processes of manufacturing system are injection molding, coating and assembly processes, and each process has multiple machines. In this paper, we introduce a scheduler based on simulation model which can be used for frequent rescheduling problem caused by urgent orders, breaking down of molds and failures of machines. The scheduling algorithm uses heuristic Backward-Forward method, and the objective is to minimize the number of tardy orders. Key words : Scheduler, Simulation, Phone camera lens module, Backward-forward      ,  ,       .        ,     ,           .   ,  ,                  .    Backward-Forward  ,      .  : , ,    , Backward-Forward

Development of Scheduler Based on Simulation for Phone Camera Lens Module Manufacturing System