In the new business economy, project management has become a central way for undertaking several of the business activities. One of the increasing and most significant concerns with projects is that, projects are behind schedule, over budget and show unsatisfactory performance in terms quality and customer satisfaction. In the last few decades the manufacturing industry successfully improved quality and productivity, by using the concepts of lean thinking. The thesis explores the relevance of lean concepts in project management and how lean concepts can improve project productivity. The qualitative method is used in this study. Further, a systematic approach was used to identify the relevance of lean concepts in project management. The qualitative data was collected using an interview with a project consultant. The results of the study reveal that all concepts of lean thinking are relevant to project management in specific kinds of projects. However, a greater degree of understanding and interpretation of each concept is needed when applying lean thinking in project management. Furthermore, some of the concepts have to be interpreted with caution when they are used in innovative projects. In general, it is found that, lean project management can improve project productivity. The findings suggest that the lean concepts can reduce cost and time which are two key measures of project success. The results of this study can be seen as a tentative framework intended to stimulate further discussion about integrating lean thinking in project and program management.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / Currently, businesses implementing electrical projects lack the theoretical knowledge of ways to correctly develop the projects given that they are based on empirical knowledge. Consequently, a need has developed to implement lean philosophy and project management as distinctive and renowned pillars to ensure high competitiveness in the market of the sector under study. Through case studies, the literature on the subject demonstrated the importance of proper planning based on cost and time pillars. These pillars were analyzed using Ishikawa tools and a problem tree. The following lean tools were chosen: 5S, visual management, and quality circles. These tools and the project management guidelines, specifically the 47 processes published in the 5th edition of the Project Management Body of Knowledge, were applied as a model proposal at a pilot company in which the results of how this combination of solutions reduces delivery times for that organization were compared.

This study looks at the differences in lean project management between projects done in the public sector and projects done in the private sector. The private sector consist of companies around Sweden, while municipalities are representing the public sector in this study. This study is based on the understanding that the lean philosophy can have advantages for the efficiency of project management, both for the private and the public sector, knowing that there are differences in the nature of these organizations. This thesis begins with an introduction that explains the theory that is important for this research, and that describes the research gap that has been found. The research gap is the basis for the research questions. After defining the research questions, an examination has been done on existing literature about the concepts of lean, project management, project managers, and lean project management. Prior research gives ideas about the challenges project managers encounter, and shows in what way lean can influence the efficiency of projects. As part of this qualitative research, and with an inductive approach, 12 semi-structured interviews have been conducted. During this interviews, project managers and persons with a connection to projects in the different organization were asked to describe projects in their organizations. This study is exploratory and has a cross-sectional design as the center of attention was on different organizations from both the private and the public sector in different parts of Sweden. In the analysis the results of the interviews are categorized and interpreted. The results show that projects are used in every organization, making use of, in almost every case, a project model which makes sure that different projects are run in similar ways. Although different organizations make use of the principles of lean, no organization is implementing the ideas completely. Major differences that have been found are differences in the background of the project manager, the level of standardization of projects, and differences in efficiency that in many situations are caused by legislation. It became clear that projects in the private sector are organized in a stricter way, with experienced project managers that follow project models strictly. In the public sector projects are mostly led by project managers that are interested in a certain project, and in those organizations project models are not followed strictly. As for lean projects, we have found no real evidence that any organization is currently having projects organized according to the lean principles. This can be expected however, seeing that lean project management is a generally unexplored part of the lean philosophy.

La presente tesis tiene como objetivo identificar de las principales causas por las cuales el Grupo Graña y Montero no ha sido competitivo en las recientes propuestas presentadas en concursos de proyectos de infraestructura bajo la modalidad de Asociación Publico Privada (APP), específicamente de carreteras. En base a lo obtenido del análisis realizado mediante juicio de expertos se identificó que existen deficiencias en la planificación y la comunicación directa por parte de los stakeholders durante las fases de elaboración de una propuesta, lo cual afecta en el desarrollo de la ingeniería y en el costo de la misma. La propuesta de solución que plantea la tesis tiene como principal enfoque el establecer pautas de gestión integrada para logar apalancar proyectos multidisciplinarios a través de la aplicación de herramientas prácticas, criterios para la estructuración, ejecución y operación de proyectos basados en Lean Project Delivery System (LPDS). Len Project Delivey System (LPDS) propone mejorar las etapas de definición y diseño de los proyectos usando las técnicas “lean”, las cuales se vienen aplicando en el Grupo Graña y Montero con gran éxito, pero solo a la etapa de ejecución del proyecto. Por lo tanto, se busca ampliar la visión del uso de las técnicas “lean”. La tesis se enfoca en lograr la mejor solución de ingeniería a partir de un trabajo colaborativo, la mejora continua y el alineamiento de los satakeholders, lo cual asegurará alcanzar un diseño de ingeniería atractivo para el cliente a un precio competitivo. El diagrama muestra la propuesta de pasar de un enfoque secuencial a un enfoque integrado en donde el impacto de cambios propuestos busca generar valor y no ajustar costos. / The present thesis aims to identify the main reasons why Grupo Graña y Montero has not been competitive in the recent proposals for infrastructure projects presented under the modality of Public Private Partnership (PPP), specifically for road projects. Based on the analysis carried out by expert judgment method, it was identified that there is a deficiency in the planning and direct communication between the stakeholders during the phases of the proposal elaboration, which affects the development of the engineering and the cost of the project. The main objective of the solution proposed by the thesis is to establish integrated management guidelines to leverage multi-disciplinary projects through the application of practical tools, criteria for structuring, execution, and operation of projects based on the Lean Project Delivery System. Len Project Delivery System (LPDS) proposes to improve the stages of definition and design of the project using lean techniques, which have been applied by Graña and Montero Group with great success but only to the project execution stage. Therefore, it seeks to broaden the vision of the use of "lean" techniques. The thesis focuses on achieving the best engineering solution from a collaborative work, continuous improvement, and alignment of the stakeholders, which will ensure an attractive engineering design for the client at a competitive price. / Tesis

Traditional methods of project management are not appropriate for complex projects anymore. Since projects are becoming increasingly complex and uncertain, interaction between activities and resources is growing in ways not considered by these methods. Nowadays, managers need more agile project management methods that are able to recognize and deal with uncertainty and to produce the expected results. Lean project management, the most recent approach of lean methodology, appears as an alternative approach capable of dealing with complexity and uncertainty. The latest investigations in the field show that traditional methods are still adequate for simple projects, while lean methods are more appropriate for complex projects. This thesis aims to investigate the nature of lean project management and to examine project risk management processes so that managers can assess the complexity of projects before their beginning and decide which method to apply in order to manage them.

La filosofía Lean Construction (LC) o la construcción sin pérdida se da en la década de 1990, siendo este una adaptación del modelo automovilístico del Toyota Production System o Lean Production a la industria de la construcción, la introducción o el nuevo enfoque de la gestión de proyectos de construcción fue propuesta por el profesor Lauri Koskela, donde nos dice que veamos a la producción en la construcción como un proceso de transformación, de flujo y generador de valor, en consecuencia el objetivo de LC es crear buenos sistemas de producción que permitan optimizar, reducir o eliminar los flujos para mejorar los tiempos de entrega. El sector construcción uno de los más importantes gestores de la economía del país por su participación del PBI necesita la aplicación de metodologías en la gestión de proyectos como LC para generar valor sin pérdidas, sin embargo, su aplicación o su correcta aplicación es reducida, resultando con indicadores óptimos para un grupo selecto de empresas de construcción. En este trabajo de investigación se va a proponer la aplicación de la filosofía Lean Construction como herramienta para la planificación, ejecución y control para la construcción de una estación subterránea de pasajeros para la Línea 2 del Metro de Lima y Callao, vamos a detallar los conceptos y herramientas del LC que, nos sirvan como base para su aplicación y desarrollo para el cumplimiento de los objetivos del proyecto. Así también, se determinará la secuencia, división y sectorización de trabajo para la elaboración del plan de trabajo, se identificarán las actividades que no agregan valor o no productivas, atacando así las perdidas más visibles, reduciendo los ciclos y proponiendo actividades en paralelo. Aplicaremos las teorías Last Planner, Lookahead y Week Planning para el control del proyecto a fin de evaluar restricciones y determinar los que podemos hacer en la planificación diaria, con lo cual buscamos generar una guía para la ejecución del resto de estaciones que comprenden el proyecto. Finalmente se analizará los resultados del proyecto mediante herramientas de medición como el PAC (Porcentaje de Actividades Cumplidas), TC (trabajos contributorios) y otros para las conclusiones y recomendaciones para futuras estaciones aplicando la mejora continua. / The Lean Construction (LC) philosophy or construction without loss occurred in the 1990s, this being an adaptation of the automotive model of Lean Production to the construction industry, the introduction or the new approach to construction project management It was proposed by Professor Lauri Koskela, where he tells us to see production in construction as a process of transformation, flow and value generator, therefore the objective of LC is to create good production systems that allow optimizing, reducing or eliminate flows to improve delivery times. The construction sector, one of the most important managers of the country's economy due to its participation in GDP, needs the application of project management methodologies such as LC to generate value without losses, however its application or its correct application is reduced, resulting in Optimal indicators for a select group of construction companies. In this thesis, the application of the Lean Construction philosophy will be proposed as a tool for planning, executing and controlling the construction of an underground passenger station for Line 2 of the Lima and Callao Metro, we will detail the concepts and tools of the LC that serve as a basis for its application and development for the fulfillment of the project's objectives. Also, the sequence, division and sectorization of work for the preparation of the work plan will be determined, activities that do not add value or are not productive will be identified, thus attacking the most visible losses, reducing cycles and proposing activities in parallel. We will apply Last Planner, Lookahead and Week Planning theories for project control in order to evaluate restrictions and determine what we can do in daily planning, with which we seek to generate a guide for the execution of the rest of the stations that comprise the project. Finally, the results of the project will be analyzed using measurement tools such as the PAC (Percentage of Completed Activities), TC (contributory works) and others for the conclusions and recommendations for future stations applying continuous improvement. / Tesis