This paper reports findings from a two-year study to identify Lean practices for deriving software requirements from aerospace system level requirements, with a goal towards improving the software upgrade value stream. / Lean Aerospace Initiative

Background: Laboratories in Sweden have a big challenge when Sweden is a wide country and big parts is sparsely populated and many samples have limited durability. At same time as laboratories is a sensitive branch with high demands on time and quality which makes a functional internal and external logistic important. Purpose: The purpose is to increase the understanding of internal sample flows for companies who works with sample analysis, by analyse sample flows in companies that is analysing samples, from a logistic perspective. To answer the purpose, two research questions are formulated: ·        What limitations can be identified in internal sample flows from delivery to analyses done for companies working with analyses of samples? ·        How can limitations in internal sample flows be handled from delivery to analyses done for companies working with analyses of samples? Method: A case study has been made on Eurofins laboratory in Lidköping where data has been collected by interview studies and observations. Result: By the logistic perspective several possibilities to increase the efficiency have been found. By logistic tools proposals have been made how those hindrances can be handled. Those possibilities to increase the efficiency is: Consolidation activities Failsafe Standardizations Overlook unload/loading of trucks Make the sample flow even during the week Conclusions: In this study have the writer made several recommendations for companies that is working with analysing samples. But it is important to consider that those recommendations are case-specific, but if same conditions occur is the result possibly to generalize.

No description available.

The master thesis is focused on problems within the Logistics System of an unnamed company. The theoretical part introduces Systemic Approach problem solving, as well as the methodology of Six Sigma and Lean Management and its analytical tools, and finally with Logistics as the section of Operations Research. The practical part contains a brief introduction to the company profile, the use of Systemic Approach and methods of Six Sigma and Lean. Procedures of these methods are compared afterwards. Within the System Approach is also done the analysis using Operational Research Method - the Queuing System. Based on the analysis is determined a model that expresses the best use of the system.

The oil industries constitute a significant part of global economic, depending on whether the value of its output, exports or jobs created. The industry affects directly the national economy, and contributes to Gross Domestic Product (GDP). Oil industries are considered the main supplier for many sectors such as industrial, transportation and so forth. On the other hand, the oil industry has faced many problems such as environmental impact, exhausts, climate change, waste, and safety; as well as customers' and employee dissatisfaction. Errors and waste in the oil industry have serious costs and consequences. Hence, a systematic methodology of quality in the oil enterprise has become an urgent necessity to minimize or eliminate waste and provide a health, safety, and environment (HS&E) performance. One of the most efficient systems of quality is the integration between Six Sigma methodology and Lean Enterprise. Lean Six Sigma (LSS) has become widely used in several areas such as manufacturing, service, and health care. The research literature does not provide a framework for implementing Lean and Six Sigma in the oil industry. A systematic general framework of the LSS implementation is developed which includes eight steps - statement, leadership, committee, deployment, prioritize, implement, review, and finalize. Then, the effectiveness of the LSS methodology of solving problems that the oil industry faces was demonstrated by providing several case studies applied successfully in different areas in the oil enterprise.

Lean techniques are tools that reduce waste in the process and create value for the end-customer. Initially, the concept of lean thinking started in manufacturing, but with the tremendous advantages it offers in terms of value creation for the customer, defect reduction, increase of profits for corporations, it has been recognized as an important tool across a wide spectrum of industries. Although Healthcare industry has started applying these techniques, there is very little work published on how to apply these techniques to this particular industry. In this study, a framework for applying lean thinking to healthcare industries is presented. The framework depicts a systematic methodology for identifying value streams. The framework was developed specifically for the healthcare industry, but it can be applied to service industry in general. A case study is presented on how to apply this framework. Value stream mapping has been conducted at a clinic to identify areas of improvement. The components of the developed framework have been used to define a future state of process based on input from process owners, nurses, physicians, and patient surveys. The study has identified factors that influence the success of implementation of lean techniques in healthcare. Also the potential for future work has been identified.

El objetivo de la siguiente tesis es crear una visión integral de las metodologías de planeamiento y control que forman parte de la filosofía “Lean Construction” para validarlas como buenas prácticas en construcción de obras de ingeniería. Para ello, se eligió el proyecto encargado de la construcción de un Túnel de trinchera cubierta en el Perú y se evaluó la forma de trabajo de las áreas de planeamiento y producción en el contexto de la implementación de las metodologías. Esto define dos momentos diferentes en el proyecto; inicialmente, cuando se trabajaba de manera tradicional y luego con las metodologías ya implementadas. Durante todo este largo proceso se lograron mejoras en el desempeño de la ejecución del túnel. Para constatar ello, se evaluaron las ventajas y limitaciones de los diferentes enfoques. Asimismo, el análisis de la información recopilada permitió mostrar de manera efectiva las mejoras a partir de la evaluación del grado de adherencia o cumplimiento y el análisis de los desvíos entre lo planeado y realizado. Finalmente, como propuesta y aplicación de mejora, la tesis presenta la forma ideal de implantar este sistema de gestión del tiempo en cualquier proyecto de construcción y la propuesta se expone mediante diagramas de flujos y diagramas funcionales de las etapas y procesos del sistema. / Tesis

No description available.

Este trabalho propõe uma organização para o processo de construção de um prédio comercial, encadeando a logística de abastecimento do canteiro com a montagem das estruturas metálicas. Esta foi desenvolvida a partir dos conceitos lean originários do Sistema Toyota de Produção e, posteriormente, foram aplicados em outros setores como o da construção civil. Para enfatizar problemas críticos de processo e identificar suas soluções, foi estudado um anteprojeto de obra localizada no Centro da cidade do Rio de Janeiro. A sincronização entre a atividade logística e o processo de montagem das estruturas seguiu a lógica lean de redução de tempos de espera, de eliminação de estoques em canteiro e de criação de frentes simultâneas de fechamento dos andares, como condição para a melhoria de produtividade da obra. Foi analisado o mapeamento da cadeia de valor do fluxo de materiais e operações compreendidos entre o depósito de estruturas e a obra, verificando o balanceamento de atividades de produção e os possíveis ganhos de produtividade. Os resultados obtidos evidenciariam potencial de ganho na medida em que fornece justificativas para a aplicação das ferramentas lean no estudo do anteprojeto de construção, integra a obra com o abastecimento logístico das estruturas e principalmente reduz os desperdícios de espera e estoque. Conclui-se, portanto, que o sistema lean, aplicado a este estudo, reúne condições para a melhoria de produtividade do processo construtivo e por conseguinte aumenta sua competitividade. / The aim of this work is to apply the Lean Construction plan, based on Toyota Production System, as the main strategy for the steel structure assembly in a commercial building. The Lean System target is to increase the productivity in the construction process by considering the synchronism between the logistic activities and the steel structural erection. This synchronism can be obtained by following the Lean Logic of reducing the time delay, the elimination of inventory in the building site and the organization of simultaneous teams for the assemblage of the steel parts. The material flow and the sequence of activities are represented in a value stream map, in order to identify the time wasted during the process and trying to otimize sequence of operation. At the end, by analyzing a particular project of a building at the center of Rio de Janeiro, the critical problems involved in a steel construction were identified and some alternative solutions for these problems, based on Lean System, are proposed.

Made available in DSpace on 2014-06-11T19:32:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-12-13Bitstream added on 2014-06-13T19:42:58Z : No. of bitstreams: 1 lourencojunior_j_dr_guara.pdf: 4002617 bytes, checksum: ca649160aa57c266beabe55dd3030837 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / É expressiva a repercussão do conceito da Produção Enxuta e grande parte das histórias de sucesso vem da indústria automotiva e de outras de fabricação de produtos discretos. Estas se caracterizam por volumes elevados e uma variedade relativamente pequena de produtos. Entretanto, constatou-se na literatura a carência de abordagens que tratem da Produção Enxuta aplicada à manufatura contínua onde os equipamentos de produção são, não raro, grandes, de elevado custo e relativamente fixos. Os processos contínuos de fabricação são menos flexíveis e não se adequam, por exemplo, a um arranjo celular como os da manufatura discreta. Neste contexto, o objetivo do presente trabalho é o de investigar a aplicabilidade do conceito da Produção Enxuta e de suas ferramentas à indústria de manufatura contínua, em particular na fabricação de condutores elétricos. Acerca da metodologia desta pesquisa, de início, um survey exploratório com fabricantes paulistas de condutores elétricos é realizado. Em seguida, a partir de dados ex-post facto de um fabricante com extenso histórico de prática dos conceitos da Produção Enxuta, foi realizado o mapeamento do fluxo de valor (VSM). Idealizou-se então o mapa do estado futuro considerado as condições de contorno e/ou adaptação das práticas enxutas a serem adotadas e seus os impactos são investigados por meio de simulação discreta estocástica. Os resultados obtidos do survey permitem inferir que o conceito ainda requer uma evolução mais significativa, naquele universo pesquisado. Já os resultados da simulação, avaliados por meio de um planejamento de experimentos e a avaliação simultânea das variáveis de saída, pelo Método Plackett-Burman, apontam a significativos ganhos, por exemplo, reduções de lead-time e estoque em processo. Em conclusão, foi... / It is significant the repercussion of the concept of Lean Production, much of the success cases come from the automotive industry and other manufacturing discrete products. Those industries are characterized by high volumes and a relatively small assortment of products. However, there was a lack of literature on approaches those address Lean Production applied to continuous manufacturing where production equipment are, not rarely, large, high cost and relatively fixed. The continuous manufacturing is less flexible and not suitable, for example, a cellular layout as discrete manufacturing. In this context, the objective of this thesis is to investigate the applicability of the concept of Lean Production and its tools for continuous manufacturing industry, particularly in the manufacture of electrical conductors. About the methodology of this research, at first, an exploratory survey with manufacturers of electrical conductors is performed. Then, data from ex-post facto from a manufacturer with long history of practice of the concepts of Lean Production was held VSM - Value Stream Mapping. After was envisioned future state map considered the boundary conditions and/or adaptation of lean practices to be adopted and their impacts are investigated by means of discrete stochastic simulation. The results of the survey allow us to infer that the concept still requires a more significant development in that universe surveyed. Already the simulation results, evaluated by means of a design of experiments and the simultaneous evaluation of the output variables, by the use of the Plackett-Burman Method, point to significant gains, for example, in reducing the lead time and the amount of stock in process. In conclusion, it was demonstrated for the industrial environment studied, continuous manufacturing eminently, the possibility... (Complete abstract click electronic access below)