The surprising effectiveness of earliest operation due-date sequencing
The surprising effectiveness of earliest operation due-date sequencing
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DOI：
10.1080/09537287.2017.1302616
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发表时间：
2017-03
影响因子：
8.3
通讯作者：
H. Lödding;Andreas Piontek
中科院分区：
文献类型：
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作者：
H. Lödding;Andreas Piontek
摘要在按订单生产中，进度可靠性是一个非常重要的问题，但在工业实践中，绝大多数企业对进度可靠性的认识还不够充分。人们早就知道，在工作站上按照订单的到期日顺序处理订单，可以补偿在一定范围内延迟到达工作站的情况。通过与乐观理论边界的比较，分析了最早操作到期日排序的有效性。令人惊讶的结果是，EODD几乎可以充分利用理论潜力。因此，除了少数例外情况，只要进度可靠性很重要，就应该在实践中使用它。它的有效性随着工作站在制品水平的提高而提高，因此与减少在制品水平和生产时间的目标相冲突。一个简单的预测模型允许评估在何种程度上可以通过EODD排序来补偿延迟，以及在何种程度上可以实现进度遵从。
Abstract In make-to order production, schedule reliability is very important but still not sufficiently accomplished in industrial practice by the vast majority of companies. It has been known for long that processing the orders at a workstation in the order of their operation due-dates can compensate for lateness in the arrival at the workstation within certain boundaries. The paper analyses the effectiveness of earliest operation due date (EODD) sequencing by comparing it to an optimistic theoretical boundary. The surprising result is that EODD can nearly fully exploit the theoretical potential. It should therefore be used in practice whenever schedule reliability is important, with only few exceptions. Its effectiveness though is increasing with the workstation’s WIP level and thus is in conflict with the objective to reduce WIP levels and throughput times. A simple forecasting model allows to assess the extent to which lateness can be compensated by EODD sequencing and which schedule compliance can be achieved.