Towards an integrated Workload Control (WLC) concept:the performance of due date setting rules in job shops with contingent orders

Thurer, Matthias and Stevenson, Mark and Silva, Cristovao and Land, Martin (2013) Towards an integrated Workload Control (WLC) concept:the performance of due date setting rules in job shops with contingent orders. International Journal of Production Research, 51 (15). pp. 4502-4516. ISSN 0020-7543

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Abstract

Workload control (WLC) is a production planning and control concept developed for make-to-order companies. Its customer enquiry management methodology supports due date setting, while its order release mechanism determines when to start production. For make-to-order companies, due date setting is a strategically important, complex task where unconfirmed jobs place demands on capacity which are contingent on a quotation being accepted by the customer. Yet most prior WLC research has begun at the order release stage with a set of confirmed orders with predetermined due dates. In contrast, this paper focuses specifically on customer enquiry management and uses simulation to compare and contrast the performance of 11 due date setting rules in a job shop where part of the workload consists of unconfirmed or contingent orders. The best results are achieved by a finite loading rule which explicitly considers the workload of contingent orders when estimating lead times. This enables demand to be levelled over time, allowing due dates to be short and reliable – thereby improving both the competitiveness of a make-to-order company and the customer service level it is able to offer. Future research should focus on integrating customer enquiry management, and its due date setting rule, with order release control.

Item Type:
Journal Article
Journal or Publication Title:
International Journal of Production Research
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2209
Subjects:
ID Code:
62038
Deposited By:
Deposited On:
06 Feb 2013 17:45
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Jul 2020 11:05