Metodología para el rediseño de cadenas de suministro multinegocio
(English) Each supply chain arises in response to a new need, whether due to new customer groups or new forms of communicationwith customers. As reality evolves, new supply chains are designed, many of them similar to those existing. Currently, several supply chains of the same organization can be m...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | español |
| OAI Identifier: | oai:upcommons.upc.edu:2117/427839 |
| Acceso en línea: | https://hdl.handle.net/2117/427839 https://dx.doi.org/10.5821/dissertation-2117-427839 |
| Access Level: | acceso abierto |
| Palabra clave: | 65 - Gestió i organització. Administració i direcció d'empreses. Publicitat. Relacions públiques. Mitjans de comunicació de masses Àrees temàtiques de la UPC::Economia i organització d'empreses |
| Sumario: | (English) Each supply chain arises in response to a new need, whether due to new customer groups or new forms of communicationwith customers. As reality evolves, new supply chains are designed, many of them similar to those existing. Currently, several supply chains of the same organization can be managed independently, either due to different customer groups or different marketing channels. This is a multi-business case. In turn, changes in the environment lead managers to modify the configuration of supply chains, which is a redesign. In addition, academic literature deals extensively with the design of supply chains, while redesign is limited; likewise, multi-business reconfiguration is not frequent. In this work, a methodology is developed for redesigning several supply chains corresponding to several businesses in a network structure called REDNURS (Re-Design Network Under Risk and Synergies). This methodology, based on a succession of steps, determines the stages and levels of complementarity of a pivot chain with respect to others. The effects of synergies do not only include simple complementarities of activities, but also they take into account the different decision levels (strategic, tactical, and operational) and dimensions (static and dynamic) in supply chains. To this end, the MESHAV (Methodology of Evaluated Synergies Horizontally and Vertically) is developed. Its objective is, on the one hand, to achieve the measurement of synergistic sources and obtain a Horizontal Synergistic Factor. On the other hand, the dynamic behavior must be evaluated, which is achieved through a Vertical Synergistic Factor derived from the results obtained in its structural phase. All these structural and dynamic changes allow obtaining the Global Synergistic Factor of the network, the result of which is reflected in an a priori redesign of each multi-business chain. The use of qualitative and quantitative tools allows obtaining, from an a priori solution provided by MESHAV, a group of different types of architectures, which consider inventory levels, processing times, costs and service levels. To do this, algorithms are developed to optimize the redesign of this multi-business network. For which, static models are used for the structural dimension and dynamic models for the evolution of flows. The tools used are, first of all, simulation models in conjunction with AHP (Analytic Hierarchy Process) and TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) systems. The simulation allows analyzing the dynamic dimension; from a set of scenarios and configurations, dynamic indicators such as inventory times and levels are obtained. This result is used as the starting data for the resolution of the static dimension using linear programming models, either for the manufacturing stage or for the distribution stage. This work demonstrates the applicability of the research by developing the redesign of three supply chains in the pharmaceutical sector of a South American country and additionally the redesign for a global group that manufactures automobiles of different brands. |
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