선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- In addition, the buffer of backlog is based on the output for one day. Accordingly, assuming that the keys to securing competitive production capability are efficient inventory management and accurate scheduling, this study applied various dispatching rules in real time to prove the effects and results of accurate scheduling through simulation. The simulation approach was used for the presented methodology.
- Accordingly, assuming that the keys to securing competitive production capability are efficient inventory management and accurate scheduling, this study applied various dispatching rules in real time to prove the effects and results of accurate scheduling through simulation. For the semiconductor process of M Company, we compared the results of performance indices for the present FCFS dispatching rule, EDD dispatching rule, and SPT dispatching rule with those of the EDD-SPT weighted composite dispatching rule suggested in this study. As a result, we found that the present semiconductor process of M Company had many problems.
- The higher this index is, the better it is. In this study, we analyzed the utilization of ATM8100 in the process #10, DFD-640 in the process #20, and BLUEMP7 & ASC336F in the Curing process, which are the most problematic of the studied processes.
- Furthermore, there is no single dispatching rule that is always appropriate for all situations. Therefore, this study was carried out to develop the schedule for selecting the dispatching rule for decision making factors in order to obtain the performance criteria demanded by users during each production interval. The current scheduling earned out in the semiconductor assembly process follows the dispatching rule by simple FCFS (First Come First Serve).
- However, under the present circumstances, because consistent process tasks are allocated with the weight given to profits, there is the problem of generating orders in the descending order of profits with the backlog of 1 day. This study used the weight of EDD (earliest due date) by considering the Penalty and Price for due date, and calculated the weight of SPT (shorted process time) by reflecting the process run time to study on the composite dispatching rule. The development of the composite dispatching rule is carried out in the matrix development, and a new Order Rank is determined which allocates tasks first from the order with the smallest sum of allocation priority weights.
- 503, and the total of the weights is 1. We can guarantee the preference values determined through the consistency test, and apply the above weight values to the weighted EDD-SPT Relationship Matrix in this study.
이론/모형
- Accordingly, assuming that the keys to securing competitive production capability are efficient inventory management and accurate scheduling, this study applied various dispatching rules in real time to prove the effects and results of accurate scheduling through simulation. The simulation approach was used for the presented methodology.
- However, Figure4. is the preference of M Company itself analyzed from the past data, and it was adapted by applying the subjective preference of AHP(Analytic Hierarchy Process) presented by T. L. Satty. The EDD preference criteria were determined by comparing the delivery penalty and the unit delivery cost.
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