Setting Planned Leadtimes in Capacity Requirements Planning |
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Authors: | Haruki Matsuura Hitoshi Tsubone |
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Institution: | 1.Kanagawa University,Japan;2.Tokyo Metropolitan Institute of Technology,Japan |
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Abstract: | This paper deals with the problem of determining planned leadtimes in a periodic loading system, such as ‘Material Requirements Planning.’ A method for determining planned leadtime for an individual job, based upon the operation time for the job, is presented from the standpoint that the planned leadtime should be determined under a management policy, taking a trade off between work-in-process quantities and capacity requirements variations into consideration. The proposed method, which is derived with Lagrange's method of indeterminate coefficients, can minimize capacity requirements variations under a given average loading time, under general operation time distributions. |
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