Load oriented order release (LOOR) revisited : bringing it back to the state of the art

Yan, Haoyun and Stevenson, Mark and Hendry, Linda Caroline and Land, Martin J. (2016) Load oriented order release (LOOR) revisited : bringing it back to the state of the art. Production Planning and Control, 27 (13). pp. 1078-1091. ISSN 0953-7287

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In the workload control literature, the Load-Oriented Order Release (LOOR) approach has been neglected since its robustness was questioned at the end of the 1990s. This paper revisits LOOR and evaluates whether its performance can be improved in two ways. First, an intermediate pull release mechanism is added to avoid starvation between periodic release events. This mechanism was recently shown to be effective at improving the performance of a state-of-the-art release method known as LUMS COR. Second, an integer linear programming model is used to manage the trade-off between the timing and load balancing functions of order release. The two refinements are assessed using simulations of different shop configurations, which allow us to evaluate robustness. Results demonstrate that the refinements contribute to improving the performance of LOOR such that it can even outperform LUMS COR. Perhaps counter-intuitively, putting more emphasis on load balancing than on the urgency of individual orders is shown to lead to a lower percentage of tardy orders. Overall, the improvements mean that concerns about LOOR’s robustness are no longer valid – it now appears suitable for a wide range of shops found in practice.

Item Type:
Journal Article
Journal or Publication Title:
Production Planning and Control
Additional Information:
This is an Accepted Manuscript of an article published by Taylor & Francis in Production Planning and Control on 13/05/2016, available online: http://www.tandfonline.com/10.1080/09537287.2016.1183831
Uncontrolled Keywords:
?? workload control (wlc)intermediate pull releaseload balancingjob shopsimulationstrategy and managementmanagement science and operations researchindustrial and manufacturing engineeringcomputer science applications ??
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Deposited On:
22 Apr 2016 14:58
Last Modified:
18 Dec 2023 01:37