Nuestros investigadores

María Jesús Álvarez Sánchez-Arjona

Departamento
Organización Industrial
Escuela de Ingenieros (TECNUN). Universidad de Navarra
Líneas de investigación
Optimización, Economía Circular
Índice H
17, (Google Scholar, 16/04/2019)
9, (WoS, 16/04/2019)
12, (Scopus, 16/04/2019)

Publicaciones científicas más recientes (desde 2010)

Autores: Muñoz, Andrés Felipe, (Autor de correspondencia); Santos, Javier; Montoya-Torres, J.; et al.
Revista: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING COMPUTATIONS
ISSN 1923-2926  Vol. 10  Nº 3  2019  págs. 375 - 392
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. (C) 2019 by the authors; licensee Growing Science, Canada
Autores: Rodríguez, Victoria María; Alvarez, M. J.;
Revista: ENVIRONMENTAL QUALITY MANAGEMENT
ISSN 1088-1913  Vol. 27  Nº 3  2018  págs. 135 - 146
Global warming is negatively affecting the environment of the planet. This situation has led to the development of international standards, such as the International Organisation for Standardization's DIS 14064-1 and the Greenhouse Gas Protocol Corporate Standard, both of which measure corporate carbon footprints. These standards provide guidelines that can be applied to different organizational sectors. However, these are not sufficient for controlling the reduction of carbon emissions, because although they propose the use of indicators, they do not explicitly define them. In addition, in the case of emissions from wastewater treatment, they only suggest that the emissions associated with this process be considered. In the present study, an eight¿step, unified methodology based on these two international standards is proposed, focusing on direct emissions. Moreover, the step¿by¿step to data collection, calculations, and the required indicators to control the emissions are defined. The first scope considers direct emissions from sources that are owned or controlled by the company. Methane generation measurement from wastewater treatment has been included in the methodology within Scope 1, as it is the second most polluting gas after carbon dioxide, both of which give rise to global warming. The proposed methodology was tested as a case study in one of the most important companies in the food sector in Colombia.
Autores: Fathi, M.; Alvarez, M. J.; Rodríguez, Victoria María;
Revista: EUROPEAN JOURNAL OF INDUSTRIAL ENGINEERING
ISSN 1751-5254  Vol. 10  Nº 2  2016  págs. 145 - 169
The U-shaped assembly line has received a considerable attention and has been widely used in industry in recent years due to the pressures of the just-in-time (JIT) manufacturing philosophy. However, balancing the U-shaped line is more difficult than balancing the traditional straight line. This study aims at balancing the U-shaped assembly line by introducing a novel heuristic which is based on the simulated annealing (SA) algorithm. The objectives to be optimised in this study are the number of workstations and balance efficiency. The performance of the proposed algorithm is examined by solving a set of standard test problems and a real case study. The results attained by the proposed algorithm were compared against the best known solution in the literature and it was found that the proposed algorithm is able to find good solutions in a reasonably short computational time.
Autores: Jaca, Carmen, (Autor de correspondencia); Zárraga-Rodríguez, M.; Viles, Elisabeth; et al.
Revista: REVISTA GLOBALIZACION, COMPETITIVIDAD Y GOBERNABILIDAD
ISSN 1988-7116  Vol. 10  Nº 1  2016  págs. 66 - 81
This study focuses on how innovation capability can be developed within a company and how information capability is integrated into the innovation process. Innovation, helped by elements that generate and share knowledge, is generated through different practices. Thus, the present study develops an analysis of the role of information capability in innovation through the assessment of the direct experiences of managers from innovative companies located in Spain through grounded theory methodology. Our findings suggest that strategy promotes the appropriate culture and values that are aligned with innovation in the company. Strategy also establishes and acquires the resources, both internal and external, that an organization needs in order to achieve competiveness through innovation. Moreover, the organizational culture and resources support the information capability, and this information capability in turn supports the knowledge management which supports and develops innovation. The contribution of this research is the proposal of a framework that explains the elements that underlie innovation management in companies. The paper contributes to a deeper understanding of how to use information capability and knowledge management as potential sources of innovation.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Revista: THE TQM JOURNAL
ISSN 1754-2731  Vol. 28  Nº 6  2016  págs. 798 - 813
Autores: Jaca, Carmen; Zárraga-Rodríguez, M.; Viles, Elisabeth; et al.
Revista: REVISTA GLOBALIZACION, COMPETITIVIDAD Y GOBERNABILIDAD
ISSN 1988-7116  Vol. 10  Nº 1  2016  págs. 66 - 81
Autores: Fathi, M.; Rodríguez, Victoria María; Fontes, D.; et al.
Revista: INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
ISSN 0020-7543  Vol. 54  Nº 3  2016  págs. 878 - 893
The Assembly Line Part Feeding Problem (ALPFP) is a complex combinatorial optimisation problem concerned with the delivery of the required parts to the assembly workstations in the right quantities at the right time. Solving the ALPFP includes simultaneously solving two sub-problems, namely tour scheduling and tow-train loading. In this article, we first define the problem and formulate it as a multi-objective mixed-integer linear programming model. Then, we carry out a complexity analysis, proving the ALPFP to be NP-complete. A modified particle swarm optimisation (MPSO) algorithm incorporating mutation as part of the position updating scheme is subsequently proposed. The MPSO is capable of finding very good solutions with small time requirements. Computational results are reported, demonstrating the efficiency and effectiveness of the proposed MPSO.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Revista: INFORMATION RESEARCH
ISSN 1368-1613  Vol. 20  Nº 2  2015 
Introduction. The aim of this study is to obtain deeper knowledge about the information practices and competences that evidence information capability in a company. The first objective of this study is to define a set of practices that can be implemented in order to develop information capability in a company and to explore the common underlying dimensions of these practices, that is, the information competences. The second is to explore which information competences can be expected to have a greater influence on the quality of the information managed. Method. Our target population for the study was companies committed to total quality management models because those models are information-intensive management systems. Data was collected with a questionnaire designed to elicit information regarding information practices. Forty-six companies that have applied the European framework for quality management excellence model were respondents to the survey. Analysis. Quantitative analyses with the support of the Minitab software package were carried out on the data. More specifically we performed an exploratory factor analysis and a multiple regression analysis to achieve the objectives of the study. Results. Main findings reveal eighteen information-related practices that can be pooled in 6 information competences that make up information capability. Key information competences which would most affect information quality are also found. Conclusion. The competences identified by this study are presented in other literature as being equally important to business performance; however just three of these competences have a significant influence on the quality of information managed.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Revista: INFORMATION RESEARCH
ISSN 1368-1613  Vol. 6  Nº 2-3  2015 
Information is a strategic company resource, but there is no consensus in the literature regarding the set of dimensions to be considered when measuring the quality of the information. Most measures of information quality depend on user perception. Using multiple correlation analysis, we obtain a model that allows us to explain how information quality dimensions influence information consumers¿ overall feeling of being well informed. A set of dimensions that any measure of information quality should at least include is proposed. This exploratory study reports the results of a research survey among managers of companies committed to quality management within the framework of a Total Quality Management (TQM) model, which is an information-intensive management model.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Revista: PROCEDIA: SOCIAL & BEHAVIORAL SCIENCES
ISSN 1877-0428  Vol. 109  Nº 8  2014  págs. 716 -721
Autores: Zárraga-Rodríguez, M.; Suarez, M.F.; Jaca, Carmen; et al.
Revista: REVISTA GLOBALIZACION, COMPETITIVIDAD Y GOBERNABILIDAD
ISSN 1988-7116  Vol. 8  Nº 3  2014  págs. 33 - 44
El objetivo de este estudio es analizar si la gestión y el uso de la información es eficiente en empresas comprometidas con la gestión de la calidad y si depende del sistema de gestión de calidad adoptado por la organización. A partir de una revisión bibliográfica hemos establecido un conjunto de buenas prácticas que conducen a la gestión y el uso eficiente de la información en la organización. A continuación, usando un cuestionario, hemos recogido la percepción de los directivos sobre el nivel de adopción de las prácticas establecidas. Los directivos pertenecían a dos tipos de organizaciones: empresas que han adoptado la ISO9000 como sistema de gestión de calidad y empresas que han adoptado el modelo EFQM de calidad total. El estudio contribuye a lograr un conocimiento más profundo de la gestión y uso eficiente de la información como fuente de ventaja competitiva para la organización. El nivel de adopción de las prácticas que conducen a la gestión y uso eficiente de la información es elevado en las organizaciones comprometidas con la gestión de la calidad. Además se han detectado diferencias que dependen del sistema de calidad adoptado por la misma. Los datos se han obtenido de muestras pequeñas de empresas de diferentes regiones del mundo. Por otro lado, sólo se han tenido en cuenta dos sistemas de calidad
Autores: Fathi, M.; Rodríguez, Victoria María; Alvarez, M. J.;
Revista: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
ISSN 0268-3768  Vol. 75  Nº 1  2014  págs. 629 - 643
In recent years, part feeding at assembly lines has become a critical issue as the result of a high level of product customization. The assembly line part feeding problem is a complex problem in which a number of decisions should be made in order to select the right quantity of each part to be supplied at the right time under a set of constraints. This study aims to cope with the part feeding problem at assembly lines by introducing a new memetic ant colony optimization-based heuristic algorithm. Due to the novelty of the problem and in order to evaluate the performance of the proposed memetic algorithm, a mathematical formulation is also presented. Case data from an automobile manufacturer and a set of generated instances are used to test both the mathematical model and the proposed memetic algorithm. The results reveal that although it is computationally difficult to solve the problem using the exact mathematical model, the mimetic algorithm was able to find sufficiently good solutions in a short period of time.
Autores: Fathi, M.; Alvarez, M. J.; Mehraban, F.; et al.
Revista: MATHEMATICAL PROBLEMS IN ENGINEERING
ISSN 1024-123X  Vol. 2014  2014 
Different aspects of assembly line optimization have been extensively studied. Part feeding at assembly lines, however, is quite an undeveloped area of research. This study focuses on the optimization of part feeding at mixed-model assembly lines with respect to the Just-In-Time principle motivated by a real situation encountered at one of the major automobile assembly plants in Spain. The study presents a mixed integer linear programming model and a novel simulated annealing algorithm-based heuristic to pave the way for the minimization of the number of tours as well as inventory level. In order to evaluate the performance of the algorithm proposed and validate the mathematical model, a set of generated test problems and two real-life instances are solved. The solutions found by both the mathematical model and proposed algorithm are compared in terms of minimizing the number of tours and inventory levels, as well as a performance measure called workload variation. The results show that although the exact mathematical model had computational difficulty solving the problems, the proposed algorithm provides good solutions in a short computational time.
Autores: Zárraga-Rodríguez, M., (Autor de correspondencia); Suárez-Barrraza, M.F.; Jaca, Carmen; et al.
Revista: REVISTA GLOBALIZACION, COMPETITIVIDAD Y GOBERNABILIDAD
ISSN 1988-7116  Vol. 8  Nº 3  2014  págs. 33 -34
Explore the development of the information capability in companies committed to quality management and explore whether the development of information capability depends on the quality management system adopted by the company. The efficient use and management of information can be considered a capability for a company. From a review of the literature we first define information capability related practices. Then, through a questionnaire, we captured the perception of managers in two types of companies regarding the existence of information practices. We contacted companies that used ISO 9000 as their quality management system and companies that were committed to the EFQM excellence model. The paper contributes to a deeper understanding of the information capability construct. According to the results, companies committed to quality management have developed the information capability. Also, this study shows the differences in its development in terms of the quality system adopted by the company.The data has been obtained from small samples of companies from different regions in the world. Also other quality management systems could be considered.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Revista: TOTAL QUALITY MANAGEMENT AND BUSINESS EXCELLENCE
ISSN 1478-3363  Vol. 24  Nº 5-6  2013  págs. 539 - 560
Autores: Alvarez, M. J.; Jaca, Carmen; Viles, Elisabeth; et al.
Revista: INTERNATIONAL JOURNAL OF QUALITY AND SERVICE SCIENCES
ISSN 1756-669X  Vol. 4  Nº 1  2012  págs. 51-60
Purpose: The purpose of this paper is to see how quality management is carried out in hotels in the Basque Country, a region in the north of Spain with a long tradition in the tourist sector. Design/methodology/approach: The objective of the study was to establish what approaches to quality management are utilised by hotels in the region. The data were collated from information gathered via a survey conducted by e-mail. Findings : A large percentage of surveyed hotels implement a quality management system that has been designed in-house. A figure of note, is the fact that 79 per cent of participants claim their quality management system has been introduced successfully. The study also indicated that a significant number of hotels implement a policy of continuous improvement to the system, as hotels believe in the effectiveness of quality management systems and think that such systems have resulted in an increase in customers and profit. Originality/value: This study offers an understanding on the philosophy of quality management adopted by hotels in the Basque Country. Moreover, it provides empirical evidence on the perceived results of the implementation of quality management in hotels.
Autores: Rodríguez, Victoria María; Amorrortu, I.; Alvarez, M. J.;
Revista: ALIMENTARIA
ISSN 0300-5755  Nº 423  2011  págs. 72 - 80
Autores: Alvarez, M. J.; Alvarez, A.; Giacomo, M. de; et al.
Revista: INTERNATIONAL JOURNAL OF FOOD SAFETY, NUTRITION AND PUBLIC HEALTH
ISSN 1479-3911  Vol. 4  Nº 1  2011  págs. 63 - 82
The food supply chain has been recognised by the USA and the EU as a critical infrastructure, and it should be considered a target for possible terrorist attacks. In this paper, we present a methodological approach developed within the EU project SecuFood to evaluate the risk associated with this threat. The usefulness of the approach is related to the improvement of the analysis of food supply chain risk in terms of the potential threats, the vulnerability of the system, and the effectiveness of counter measures. The followed approach is based on identifying biological and chemical hazards, analysing those biological and chemical agents, and determining the risk level they present in the main phases of the food supply chain. We consider the feasibility of an attack (what we call likelihood), taking into account the accessibility and manageability of the contamination agents, the vulnerability of the supply chain for specific products, and the possible adverse consequences.
Autores: Rodríguez, Victoria María; Amorrortu, I.; Alvarez, M. J.;
Revista: TECNURA
ISSN 0123-921X  Vol. 15  Nº 30  2011  págs. 71 - 81
Las rupturas en la cadena de frío representan importantes pérdidas económicas en las empresas farmacéuticas y alimentarias. Muchos de los fallos en la cadena de frío se deben a un inadecuado ajuste en los parámetros de los equipos, como por ejemplo el ajuste de los parámetros para condiciones teóricas, sin su correspondiente verificación en condiciones normales de operación. Las empresas que transportan productos refrigerados deben ser capaces de ajustar los parámetros de los equipos de una manera fácil y rápida para adaptar su funcionamiento a los cambios en las condiciones ambientales. En este artículo se presentan los resultados de un estudio llevado a cabo con una empresa distribuidora de alimentos. El principal objetivo de estudio es verificar la efectividad de la metodología "Seis sigma" como herramienta metodológica para ajustar los parámetros de los equipos en la cadena de frío. El segundo objetivo es más específico y consiste en estudiar el impacto de: la reducción del volumen de almacenamiento en el camión, la temperatura inicial del área de almacenamiento en el camión y la frecuencia de descarche en el transporte de productos refrigerados
Autores: Fathi, M.; Alvarez, M. J.; Rodríguez, Victoria María;
Revista: WORLD ACADEMY OF SCIENCE, ENGINEERING AND TECHNOLOGY. PROCEEDINGS
ISSN 1307-6884  Vol. 59  2011  págs. 413 - 421
Autores: Rodríguez, Victoria María; Barcos Redín, L.; Alvarez, M. J.;
Revista: INTANGIBLE CAPITAL
ISSN 1697-9818  Vol. 6  Nº 2  2010  págs. 202 - 235
Autores: Alvarez, M. J.; Alvarez, Ainara; Oses, Ainhoa;
Revista: ALIMENTARIA
ISSN 0300-5755  Nº 411  2010  págs. 80 - 81
Autores: Barcos, L.; Rodríguez, Victoria María; Alvarez, M. J.; et al.
Revista: TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW
ISSN 1366-5545  Vol. 46  Nº 3  2010  págs. 367 - 383
One of the most important challenges that confronts less-than-truckload carriers serving many-to-many distribution networks consists of determining how to consolidate flows of small shipments. The objective is to determine a route for each origin-destination pair that minimizes the cost while still guaranteeing a certain level of service. This research studies different aspects of the problem and provides a metaheuristic algorithm (based on Ant Colony Optimization techniques) capable of solving real-life problems in a reasonable computational time. The viability of the approach has been tested with a real case in Spain and encouraging results have been obtained
Autores: Tanco, Pablo Martín; Viles, Elisabeth; Alvarez, M. J.; et al.
Revista: JOURNAL OF APPLIED STATISTICS
ISSN 0266-4763  Vol. 37  Nº 12  2010  págs. 1961-1977
An extensive literature review was carried out to detect why design of experiments (DoE) is not widely used among engineers in Europe. Once 16 main barriers were identified, a survey was carried out to obtain first-hand information about the significance of each. We obtained 101 responses from academics, consultants and practitioners interested in DoE. A statistical analysis of the survey is introduced, including: (a) a ranking of the barriers, (b) grouping of barriers using factorial analysis, (c) differences between characteristics of respondents. This exploratory analysis showed that the main barriers that hinder the widespread use of DoE are low managerial commitment and engineers' general weakness in statistics. Once the barriers were classified, the most important resultant group was that related to business barriers.
Autores: Zárraga-Rodríguez, M.; Suarez, M.F.; Alvarez, M. J.; et al.
Libro:  ENGINEERING SYSTEMS AND NETWORKS
Vol. 28  2017  págs. 299 - 306
In the turbulent global environment in which organizations now compete, having reliable, accurate and readily available information is a key factor. Information is a strategic company resource. To the extent that TQM is an information-intensive management model, it is not unreasonable to assume that companies committed to TQM models should be efficient when managing information. This study has two main objectives. First, we aim to explore whether the information managed by companies committed to TQM models (in particular a quality management system based on the ISO 9000 international quality standards series) meets the dimensions required for information quality. Second, we aim to explore how information quality dimensions influence information consumers¿ overall feeling of being well informed in those companies. Using a quantitative approach, we used a questionnaire survey to capture the perceptions of managers in companies committed to a quality management system based on the ISO 9000 international quality standards series with respect to the information they managed. More specifically we applied a nonparametric test and performed a multiple regression analysis to address the objectives of the study. The analysis shows evidence that the information managed already meets many dimensions of information quality among the companies analysed.
Autores: Zárraga-Rodríguez, M.; Alvarez, M. J.;
Libro:  Managing Complexity
Vol. 109  2014  págs. 93 - 101
Autores: Alvarez, M. J.; Alvarez, A.; De Maggio, C.; et al.
Libro:  Critical infrastructure protection IV: IFIP
2010  págs. 157-167

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