Continuous workload control order release revisited : an assessment by simulation

Thurer, Matthias and Qu, Ting and Stevenson, Mark and Maschek, Thomas and Filho, Moacir (2014) Continuous workload control order release revisited : an assessment by simulation. International Journal of Production Research, 55 (22). pp. 6664-6680. ISSN 0020-7543

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Order release is a key component of the Workload Control concept. Jobs do not enter the shop floor directly – they are retained in a pre-shop pool and released in time to meet due dates while keeping work-in-process within limits or norms. There are two important groups of release methods: continuous methods, for which the workload falling to a specified level can trigger a release at any moment in time; and, periodic release methods, for which releases take place at fixed intervals. Continuous release methods in general have been shown to outperform periodic release methods. Yet, there is incongruence in the results presented in the literature on the relative performance of the various continuous release methods. We use a job shop simulation model to examine the performance of continuous release methods from the literature and find that the contradictory results are explained by the different rules applied to sequence jobs in the pool – a factor neglected in previous work. Finally, a new breed of continuous release methods has recently emerged, but these have not been compared with prior approaches. Therefore, we also examine these methods and show that they significantly improve overall performance, although this is to the detriment of jobs with large processing times.

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Production Research
Additional Information:
The final, definitive version of this article has been published in the Journal, International Journal of Production Research, 55 (22), 2014, © Informa Plc
Uncontrolled Keywords:
?? continuous order releaseworkload controljob shopsimulationstrategy and managementmanagement science and operations researchindustrial and manufacturing engineering ??
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Deposited On:
07 Mar 2014 12:30
Last Modified:
13 Jan 2024 00:12