Lot streaming in three-stage production processes

Lot streaming in three-stage production processes

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Article ID: iaor1998130
Country: Netherlands
Volume: 75
Issue: 2
Start Page Number: 378
End Page Number: 394
Publication Date: Jun 1994
Journal: European Journal of Operational Research
Authors: , ,
Keywords: lot sizing
Abstract:

Lot streaming is the process of splitting a given lot or job to allow the overlapping of successive operations in multi-stage production systems, thereby reducing the makespan of the corresponding schedule. This paper develops algorithms to minimize the makespan for a single job in three-stage production processes. At each stage, the job is split into s sublots. For both the flow shop and job shop problems, an algorithm is proposed which computes the minimum makespan in O(log s) time. However, for the open shop, it is shown that to evaluate the minimum makespan requires constant time. Various results are derived which are applicable when the number of stages of production exceeds three.

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