Web-Based Integer Programming Decision Support System for Walnut Processing Planning: The MeliFen Case

Carlos F. Brunner-Parra, Luis A. Croquevielle-Rendic, Carlos A. Monardes-Concha, Bryan A. Urra-Calfuñir, Elbio L. Avanzini and Tomás Correa-Vial
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Carlos F. Brunner-Parra: Department of Transport Engineering and Logistics, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Luis A. Croquevielle-Rendic: Industrial and Systems Engineering Department, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Carlos A. Monardes-Concha: Industrial and Systems Engineering Department, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Bryan A. Urra-Calfuñir: School of Engineering, Universidad Católica del Norte, Coquimbo 1781421, Chile
Elbio L. Avanzini: Industrial and Systems Engineering Department, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
Tomás Correa-Vial: General Management Department, MeliFen, Paine 9540000, Chile

Agriculture, 2022, vol. 12, issue 3, 1-22

Abstract: Chile is among the largest walnut producers and exporters globally, thanks to a favorable nut growth and production environment. Despite an increasingly competitive market, the literature offers little scientific advice regarding decision support systems (DSSs) for the nut sector. In particular, the literature does not present optimization approaches to support decision-making in walnut supply chain management, especially the processing planning. This work provides a DSS that allows the exporter to plan walnut processing decisions taking into account the quality of the raw material, such as size, color, variety, and external and internal defects, in order to maximize the benefits of the business. To formalize the problem, an integer programming model is proposed. The DSS was implemented via a web application for MeliFen, a walnut exporter located near Santiago, Chile. A comparative analysis of the last two years revealed that MeliFen increased its profit by approximately 9.8% using this tool. We also suggest other uses that this DSS provides, besides profit maximization.

Keywords: walnut processing planning; integer programming; decision support system; web application (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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