A multi-objective model for inventory and planned production reassignment to committed orders with homogeneity requirements

Esteso, Ana; Alemany, M. M. E.; Ortíz, Ángel; Peidro, David

doi:10.1016/j.cie.2018.07.025

Cited by 9 publications

(6 citation statements)

References 48 publications

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“…As differences between ADI and final order quantities lead to inefficiencies in the supply allocation, recent work has also specifically addressed the modelling of release mechanisms and supply reallocation approaches (e.g. Esteso et al 2018Esteso et al , 2019Xu and Chen 2021).…”

Section: Related Literaturementioning

confidence: 99%

“…Previous research also studied the use of supply reallocation to increase the efficiency of allocation processes in which differences between ADI and final order quantities exist (e.g. Esteso et al 2018Esteso et al , 2019Xu and Chen 2021). Previous work (Pekgün et al 2019;Seitz, Grunow, and Akkerman 2020) also shows that suitable allocation processes can incentivize customers to provide truthful ADI, which reduces inefficiencies.…”

Section: Managerial Implications and Conclusionmentioning

confidence: 99%

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A contract portfolio perspective on the role of customer order lead times in demand fulfilment processes with supply shortage

Seitz

Akkerman

Grunow

2021

International Journal of Production Research

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When demands exceed capacities, suppliers allocate available supply to customers based on customer importance and advance demand information. The accuracy of advance demand information interacts with the length of customer order lead times and influences overall customer service levels. In this paper, we analyse industrial contract portfolios with customer-specific terms in order to derive insights for contract portfolio management and the design of demand fulfilment processes. For this purpose, we develop a framework for analysis of contract portfolios capturing the dynamics of industrial planning processes. The framework is applied to portfolios from the semiconductor sector. Our numerical analysis shows that, in order to improve service levels, demand fulfilment processes and contract portfolio management must especially take into account the length of order lead times and the accuracy of advance demand information. Even though suppliers often prefer long order lead times, our analysis shows that demand fulfilment performance is not primarily determined by the absolute length of the order lead times but by the presence of a negative correlation with the accuracy of advance demand information in the entire contract portfolio. Consequently, these factors require increased attention in the management of contract portfolios and in the negotiation of individual contracts.

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Section: Related Literaturementioning

confidence: 99%

Section: Managerial Implications and Conclusionmentioning

confidence: 99%

A contract portfolio perspective on the role of customer order lead times in demand fulfilment processes with supply shortage

Seitz

Akkerman

Grunow

2021

International Journal of Production Research

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“…The skill level of each farm is limited by the quantity of skill levels defined in the CP (15). In addition, the skill level of each farm depends on their initial skill level and the number of investments received from retailers, in a way that one received investment switches the farm to the next skill level (16).…”

Section: Scenario A: Direct Investments To Farmsmentioning

confidence: 99%

“…In Scenarios C, retailers invest on cooperatives who share such funds among farms that compose them by optimizing more than one SC objective. A global objective is created by combining the objectives by means of the weighted sum method [16]. Scenario C1.…”

Section: Scenarios C: Investments To Cooperatives -Objectives Criteriamentioning

confidence: 99%

Optimization Models to Improve First Quality Agricultural Production Through a Collaboration Program in Different Scenarios

Esteso

Alemany

Ortíz

et al. 2020

Boosting Collaborative Networks 4.0

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Consumers increasingly require products with higher qualities, leading to loss units not meeting these requirements. Collaboration can be used to increase first quality products production and reduce waste generated along the chain. A collaboration program consisting in a system of investments made by retailers to cooperatives to improve the skills of farms is proposed for this aim. The novelty of this paper is threefold: 1) the business model considered in which cooperatives distribute funds among farms, 2) the inclusion of the dynamic state of products, modelling the quality variation timewise, and 3) the mathematical modelling of five scenarios with different criteria for allocating funds to farms. Results are analyzed and compared for the three aspects of sustainability concluding that: 1) the collaboration program increases the quality of products sold, and 2) interesting tradeoffs occur among the sustainability dimensions, enabling the reduction of unfairness among farms by slightly worsening economic aspects.

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“…La correcta administración y gestión de estas cuatro decisiones permitirá que la producción sea exitosa [18]. Sin embargo, múltiples industrias se caracterizan por producir un mix de productos de diferentes características, distintos tiempos de producción y con distinta demanda de materia primas [19]. Los diferentes productos, los distintos procesos y distintas unidades de procesamiento que estos siguen, así como las limitaciones de almacenamiento, tiempos de producción, cantidad y capacidad instalada son variables comunes por analizar al realizar la programación de la producción [20].…”

Section: E Gestión De La Producciónunclassified

Modelo optimizado de planificación basado en mejora de métodos que permita disminuir entregas fuera de tiempo en pequeñas y medianas empresas del sector confecciones

Llontop¹,

Molina²,

Raymundo³

2019

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation

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Multiple MYPES can not identify the times of production, production capacity and the exact and necessary raw materials for production, that is why they do not apply the correct methodologies for the improvement of processes. Production management and purchasing management consist of administrative tools widely used in different industries to maximize production levels within the organization. These are aimed at an efficient use of resources, reduction of production times by improving methods and correct distribution of work. In the present investigation, the proposal proposes the implementation of different purchasing management tools and methods improvement, which feed a new planning model optimizing the purchasing, production and planning processes. The tools used were the bimanual diagrams together with the standardization of processes, the gozinto diagram and the preparation of a planning template along with traffic lights to identify the daily workload. This model has been validated through direct implementation in the company. This proposal model was applied to an MSE of the garment sector and as a result the reduction of the production time was obtained by 15%, the increase of production capacity without altering existing resources and the reduction of reprocessing by 5%. All this caused the decrease of deliveries out of date.

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A multi-objective model for inventory and planned production reassignment to committed orders with homogeneity requirements

Cited by 9 publications

References 48 publications

A contract portfolio perspective on the role of customer order lead times in demand fulfilment processes with supply shortage

A contract portfolio perspective on the role of customer order lead times in demand fulfilment processes with supply shortage

Optimization Models to Improve First Quality Agricultural Production Through a Collaboration Program in Different Scenarios

Modelo optimizado de planificación basado en mejora de métodos que permita disminuir entregas fuera de tiempo en pequeñas y medianas empresas del sector confecciones

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