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Workload control and order release in two-level multi-stage job shops:an assessment by simulation

Thurer, Matthias and Stevenson, Mark and Silva, Cristovao and Land, Martin and Filho, Moacir (2013) Workload control and order release in two-level multi-stage job shops:an assessment by simulation. International Journal of Production Research, 51 (3). pp. 869-882. ISSN 0020-7543

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Abstract

Most studies on the performance of workload control (WLC) order release methods assume products have simple structures. But, in practice, products are often complex and consist of a number of sub-assemblies that flow through a ‘level 1’ job shop before converging on several final assembly operations in a ‘level 2’ assembly shop. Evaluating the performance of release methods in this context – referred to as the ‘two-level multi-stage job shop’ – is an important step towards improving the alignment between WLC theory and practice. We use simulation to assess the performance of four of the best-performing WLC order release methods. Results suggest that WLC order release has the potential to limit work-in-process (WIP) while reducing the percentage of tardy jobs. It is also important to consider when and where release should be controlled. Results suggest that: (1) orders should be considered for release to level 2 when the first sub-assembly is complete, rather than only when all of the sub-assemblies that make up an assembly order are complete at level 1; and, (2) exercising control at level 2 (with or without control at level 1) leads to a greater reduction in the percentage of tardy jobs than control at level 1 only.

Item Type: Article
Journal or Publication Title: International Journal of Production Research
Uncontrolled Keywords: controlled order release ; multi-stage job shop ; workload control (WLC) ; simulation
Subjects: H Social Sciences > HB Economic Theory
Departments: Lancaster University Management School > Management Science
ID Code: 53263
Deposited By: ep_importer_pure
Deposited On: 21 Mar 2012 09:07
Refereed?: Yes
Published?: Published
Last Modified: 30 Jun 2014 10:22
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53263

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