Rights statement: 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
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Load oriented order release (LOOR) revisited
T2 - bringing it back to the state of the art
AU - Yan, Haoyun
AU - Stevenson, Mark
AU - Hendry, Linda Caroline
AU - Land, Martin J.
N1 - 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
PY - 2016
Y1 - 2016
N2 - 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 Overall, the improvements mean that concerns about LOOR’s robustness are no longer valid – it now appears suitable for a wide range of shops found in practice.
AB - 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.
KW - Workload control (WLC)
KW - intermediate pull release
KW - load balancing
KW - job shop
KW - simulation
U2 - 10.1080/09537287.2016.1183831
DO - 10.1080/09537287.2016.1183831
M3 - Journal article
VL - 27
SP - 1078
EP - 1091
JO - Production Planning and Control
JF - Production Planning and Control
SN - 0953-7287
IS - 13
ER -