Improving effectiveness of parallel machine scheduling with earliness and tardiness costs: A case study
Keywords: 
Production scheduling
Earliness/tardiness
OEE
Optimization
Multi-objective
KPI’s
Issue Date: 
2019
Publisher: 
Growing Science
ISSN: 
1923-2934
Note: 
This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CCBY) license (http://creativecommons.org/licenses/by/4.0/).
Citation: 
Muñoz-Villamizar, A. (Andres); Santos, J. (Javier); Montoya-Torres, J. (Jairo); et al. "Improving effectiveness of parallel machine scheduling with earliness and tardiness costs: A case study". International Journal of Industrial Engineering Computations. 10 (2019), 2019, 375 - 392
Abstract
This paper assesses the effectiveness in scheduling independent jobs with earliness/tardiness costs and variable setup times applying the Overall Equipment Effectiveness (OEE). The OEE is a common metric for measuring the manufacturing productivity. We defined a mixed-integer linear programming formulation of the parallel machine scheduling problem with four different objective functions in order to compare different scheduling configurations. Real data, from a plastic container manufacturing company located in the Basque Country (Spain), were used to validate this approach. A sensitivity analysis was performed with different production capacities and earliness/tardiness costs in order to evaluate the trade-offs between economic performance (i.e., costs) and the partial rates of OEE (i.e., quality, performance and availability). The objective of this study is to propose a guideline to help management make decisions regarding the measurement and improvement of scheduling effectiveness through contemplating earliness, tardiness and variable setup times.

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