O aumento da competitividade no mercado tem estimulado uma grande busca por conceitos e técnicas que auxiliem os processos de melhoria do desempenho de sistemas produtivos, sobretudo no que tange a produtividade e qualidade. Neste contexto, o estudo da experiência das indústrias japonesas revela que a sua competitividade foi conquistada e tem sido sustentada com base em modelos integrados voltados ao planejamento, implementação e condução dos chamados programas de melhoria da produtividade e qualidade (PMPQ\'s). Tais modelos são baseados em filosofias especificas de gestão da manufatura, sendo que os três seguintes, despontam com grande destaque e constituem o objeto central de estudo desta dissertação: 1. Manufatura Just-in-Time (JIT); 2. Total Quality Control (TQC); 3. Total Productive Maintenance (TPM). O presente trabalho é dedicado ao estudo conceitual destes modelos. Para isso foi elaborado um quadro conceitual sobre a estrutura geral de um PMPQ. Tomando-se este quadro como pano de fundo, estes três modelos foram então caracterizados, analisados e avaliados de forma comparativa. Esta análise possibilitou a identificação dos aspectos específicos a cada um, más também evidenciou muitas semelhanças (exemplo: sua aplicação como instrumento de gestão estratégica da manufatura) entre os mesmos. / Along the last decades a series of geopolitical and macroeconomic changes have made the competition in international trade tougher. Although the brazilian economy has not been so integrated to the international market, effects of such trend are already disturbing the dynamics of Braazilian companies. Therefore an increasing number of companies have driven themselves into processes aimed to increase competitive power through strategies that value mainly attributes like cost and quality. Such processes have in general a broad scope and are usully called Productivity and Quality Improvement Programs (PQIP\'s). In this context, new paradigms for planning, implementation and guidance of such programs have risen from japanese industries. Among these paradigms, three of them are worthy of special attention and represent the main object of this work. Each of these paradigms have their own manufacturing management philosophy and are the following; 1. the paradigm based on Just-In-Time (JIT) Manufacturing philosophy, 2. the paradigm based on Total Quality Control (TQC) philosophy and 3. the paradigm based on Total Productive Maintenance (TPM) philosophy, This work is dedicated to the conceptual investigation of these paradigms. First, a conceptual framework for the general structure of a PQIP was built. Then it was taken as a frame in order to present, analyse and evaluate comparatively the three paradigms. The investigation resulted in the recognition of features that are unique to each one but it also exposed many similarities among them. One commom feature is that all three admit their use as a tool for strategic management of manufacturing, an activity that has been overlooked by western industrial companies organized and managed in traditional way. The investigation also revealed a clear resolution of these paradigms to search the achievement of economic objectives of a firm without confronting and neglecting the social and humanistic demands expressed by the human resources engaged in production.

Thesis (M.B.A.)--University of Hong Kong, 1991.

O aumento da competitividade no mercado tem estimulado uma grande busca por conceitos e técnicas que auxiliem os processos de melhoria do desempenho de sistemas produtivos, sobretudo no que tange a produtividade e qualidade. Neste contexto, o estudo da experiência das indústrias japonesas revela que a sua competitividade foi conquistada e tem sido sustentada com base em modelos integrados voltados ao planejamento, implementação e condução dos chamados programas de melhoria da produtividade e qualidade (PMPQ\'s). Tais modelos são baseados em filosofias especificas de gestão da manufatura, sendo que os três seguintes, despontam com grande destaque e constituem o objeto central de estudo desta dissertação: 1. Manufatura Just-in-Time (JIT); 2. Total Quality Control (TQC); 3. Total Productive Maintenance (TPM). O presente trabalho é dedicado ao estudo conceitual destes modelos. Para isso foi elaborado um quadro conceitual sobre a estrutura geral de um PMPQ. Tomando-se este quadro como pano de fundo, estes três modelos foram então caracterizados, analisados e avaliados de forma comparativa. Esta análise possibilitou a identificação dos aspectos específicos a cada um, más também evidenciou muitas semelhanças (exemplo: sua aplicação como instrumento de gestão estratégica da manufatura) entre os mesmos. / Along the last decades a series of geopolitical and macroeconomic changes have made the competition in international trade tougher. Although the brazilian economy has not been so integrated to the international market, effects of such trend are already disturbing the dynamics of Braazilian companies. Therefore an increasing number of companies have driven themselves into processes aimed to increase competitive power through strategies that value mainly attributes like cost and quality. Such processes have in general a broad scope and are usully called Productivity and Quality Improvement Programs (PQIP\'s). In this context, new paradigms for planning, implementation and guidance of such programs have risen from japanese industries. Among these paradigms, three of them are worthy of special attention and represent the main object of this work. Each of these paradigms have their own manufacturing management philosophy and are the following; 1. the paradigm based on Just-In-Time (JIT) Manufacturing philosophy, 2. the paradigm based on Total Quality Control (TQC) philosophy and 3. the paradigm based on Total Productive Maintenance (TPM) philosophy, This work is dedicated to the conceptual investigation of these paradigms. First, a conceptual framework for the general structure of a PQIP was built. Then it was taken as a frame in order to present, analyse and evaluate comparatively the three paradigms. The investigation resulted in the recognition of features that are unique to each one but it also exposed many similarities among them. One commom feature is that all three admit their use as a tool for strategic management of manufacturing, an activity that has been overlooked by western industrial companies organized and managed in traditional way. The investigation also revealed a clear resolution of these paradigms to search the achievement of economic objectives of a firm without confronting and neglecting the social and humanistic demands expressed by the human resources engaged in production.

Orientador: Miguel Juan Bacic / Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica / Made available in DSpace on 2018-08-06T08:30:50Z (GMT). No. of bitstreams: 1 Invernizzi_Gerson_M.pdf: 550215 bytes, checksum: 886a531e2b99c237a533d70822d2ab76 (MD5) Previous issue date: 2006 / Resumo: O Sistema Lean de Manufatura desenvolvido pela Toyota em meados do século passado foi o principal combustível que contribuiu na transformação da empresa em uma das principais indústrias do segmento automotivo. A perseguição constante pela eliminação das atividades que não agregam valor ao processo I produto fez com que a Toyota se transformasse no principal exemplo a ser citado quando se refere a exemplos de empresas Lean, isto é, empresas enxutas com produtos de alto conceito de qualidade. Nesta pesquisa descreve-se o caso prático de implantação do Sistema Lean de Manufatura em uma empresa produtora de filtros automotivos, líder no mercado onde atua. A principal ferramenta utilizada por esta empresa para a transformação em uma empresa Lean foi a aplicação do Kaizen. que em outras palavras. significa Melhoria Contínua. Isto é, a busca constante pela eliminação de todas as atividades que não agregam valor ao produto. No final deste trabalho são apresentados os resultados alcançados após 05 anos do início do processo de implantação do Sistema Lean de Manufatura, onde os principais indicadores de desempenho são citados / Abstract: The Manufacture Lean System developed by Toyota in the middle of the last century was the deciding factor that made this company in one of the most important industries In the automobile segment in the world. The constant effort to eliminate activities that do not add gain to the production/process made of Toyota the main example to be mentioned when referring to companies that can be considered Lean, that means a industry that have a high quality product concept. In this research I describe the real ease of implementation of the Lean Manufacturing System in a market leader automobile filters company. In this research the main technical books on the subject were used. The main tool used to make the cha.."1ges was the Kaizen works that means continuous improvement. The results reached after five years of the introduction of the Manufacturing Lean System are presented at the end of this essay where the main performance indicators in the process are presented. / Mestrado / Gestão da Qualidade Total / Mestre em Engenharia Mecânica

As técnicas JIT, desenvolvidas na Toyota a partir da década de 40, apresentam hoje significativo nível de aplicação, sendo que importantes resultados têm sido atingidos com o seu uso, embora o processo de implementação possa apresentar uma série de problemas. Nesta pesquisa, uma revisão de literatura descreveu o conceito de JIT, resultados obtidos com sua implementação e principais problemas enfrentados. Os Fatores Críticos para a Implementação (FCI) foram definidos como fatores cuja consideração e tratamento são importantes para que a implementação tenha maior probabilidade de atingir os resultados dela esperados. Na revisão de literatura foi possível destacar FCI relacionados principalmente a aspectos ligados ao Apoio da Alta Administração, Educação e Treinamento, Produção, Organizacionais/Estruturais e Fornecedores. Teve-se como objetivo desta pesquisa identificar a forma de tratamento dos FCI das técnicas JIT em um conjunto de empresas industriais de Sorocaba, o que poderia contribuir com o melhor entendimento do processo de implementação. Como metodologia, optou-se pela proposta de Eisenhardt para a construção de teorias a partir de estudos de caso, que permite um maior aprofundamento na questão de pesquisa. A seleção das cinco empresas estudadas foi realizada por amostragem teórica e não estatística, e contou, como apoio, com uma pesquisa quantitativa sobre o uso de técnicas JIT tendo como universo as empresas industriais de Sorocaba. A coleta de dados no estudo de casos, predominantemente de cunho qualitativo, foi efetuada por uma equipe de pesquisa, abrangendo entrevistas pessoais aliadas à observação direta das instalações produtivas. O processo de análise incluiu a comparação entre os casos, a partir de uma perspectiva cronológica e segmentada por FCI, levando à formulação de hipóteses relacionadas à forma de tratamento destes FCI. Finalmente, compararam-se as constatações da pesquisa de campo com a literatura, propondo-se também implicações para a prática e sugestões para estudos posteriores. / Developed at Toyota since the 40’s, JIT techniques are nowadays intensively spread over the world, leading the organizations that applied them to obtain relevant results. On the other hand, its implementation may present a number of problems. In this research, a literature review described the JIT concept, results obtained by its use and major problems faced. Implementation Critical Factors (ICF) for JIT Techniques were defined as factors whose consideration and treatment are relevant to allow the implementation process to occur with greater probability of achieving the expected results. Five groups of ICF were identified in the literature review: Top Management Support; Education and Training; Manufacturing; Organizational/Structural and Suppliers. This work’s objective was to identify the way in which the ICF for JIT techniques were treated by a group of industrial enterprises in Sorocaba-SP. Such a study may contribute to a better understanding of the implementation process. Eisenhardt’s proposal for theory building from case study research was applied in the methodological field, allowing a deeper analysis of the research question. Five organizations were elected for the case studies, based on theoretical, not random, sampling. A survey among industrial enterprises of Sorocaba over the use of JIT techniques acted as a support to this choice. The data collection process in the case studies, focused mainly on qualitative information, was carried out by a research team, including personal interviews as well as direct observation of production facilities. This analysis enfolded a comparison between the implementation processes, from a chronological perspective and a cross sectional view, based on the groups of ICF, leading to the design of hypothesis. At last, the field research findings were compared to the existing literature and suggestions for further studies as well as for enterprises undertaking the JIT implementation were proposed.

Dans cette thèse, nous présentons nos contributions à APOLLO : un compilateur de parallélisation automatique qui combine l'optimisation polyédrique et la parallélisation spéculative, afin d'optimiser des programmes dynamiques à la volée. Grâce à une phase de profilage en ligne et un modèle spéculatif du comportement mémoire du programme cible, Apollo est capable de sélectionner une optimisation et de générer le code résultant. Pendant l'exécution du programme optimisé, Apollo vérifie constamment la validité du modèle spéculatif. La contribution principale de cette thèse est un mécanisme de génération de code qui permet d'instancier toute transformation polyédrique, au cours de l'exécution du programme cible, sans engendrer de surcoût temporel majeur. Ce procédé est désormais utilisé dans Apollo. Nous l'appelons Code-Bones. Il procure des gains de performance significatifs par comparaison aux autres approches. / In this thesis, we present our contributions to APOLLO: an automatic parallelization compiler that combines polyhedral optimization with Thread-Level-Speculation, to optimize dynamic codes on-the-fly. Thanks to an online profiling phase and a speculation model about the target's code behavior, Apollo is able to select an optimization and to generate code based on it. During optimized code execution, Apollo constantly verifies the validity of the speculation model. The main contribution of this thesis is a code generation mechanism that is able to instantiate any polyhedral transformation, at runtime, without incurring a major time-overhead. This mechanism is currently in use inside Apollo. We called it Code-Bones. It provides significant performance benefits when compared to other approaches.

In general, industries, mainly the big or medium ones, had already come across situations typically a result from being an overly productive company, meaning that they produce more than clients can absorb or in a rhythm above the required. They also are exposed to related situations such as deviation or distortion of production information, disorder of the factory floor and several other day-by-day problems. Such problems cause losses to the company, as they do not add value, because they do not really transform raw materials, thus modifying the form or the quality of the product. This study presents the benefits of employing the Lean Manufacturing concepts for the implementation of a new productive division, acting in corrective and preventive ways, thus contributing to waste reduction, with as reference the Toyota Production System, allied to the studied companys own lean system. Practical methods for the elimination of waste potentials found in productive environments are also demonstrated through the results achieved, as well as the difference between the conventional manufacturing system which still is used by several companies, compared to those companies which adopted Lean Manufacturing as a working standard. This study focalizes the steps used for the implementation and the benefits achieved by the application of the principles of this philosophy. / De uma maneira geral, as indústrias, principalmente as de grande e médio porte, já depararam com situações típicas advindas de uma empresa que tem superprodução, ou seja, produzem mais do que o requerido pela demanda dos clientes ou em um ritmo acima do necessário. Estão sujeitas também a situações complementares, como o desvio ou a distorção de informações na produção, a desorganização no chão de fábrica, entre outros inúmeros problemas do dia-a-dia. Tais problemas acarretam perda para a empresa, uma vez que essas operações não agregam valor, pois não estão realmente transformando a matéria-prima, modificando a forma ou a qualidade do produto. Este trabalho apresenta os benefícios provenientes da utilização dos conceitos de Manufatura Enxuta na implementação de uma nova divisão produtiva, que atua de forma corretiva e preventiva, de forma a contribuir para a redução de desperdício, tendo como referência o Sistema Toyota de Produção, aliado ao próprio sistema enxuto da empresa estudada. Demonstram-se, ainda, métodos práticos para a eliminação de potenciais desperdícios encontrados em meios produtivos, por meio dos resultados alcançados, e a diferença entre o sistema de manufatura convencional, o qual ainda é utilizado por diversas empresas, e o sistema daquelas empresas que adotaram a Manufatura Enxuta como padrão de trabalho. Este trabalho focaliza os passos utilizados para a implementação e os benefícios alcançados com a utilização dos princípios dessa filosofia.

The thesis is focused on the implementation of kanban system in the company Daikin Device Czech Republic s.r.o. The theoretical part describes the principles of logistics, lean production and inventory management, including their basic tools and methods. In the practical part of the thesis, Daikin Device Czech Republic Ltd. is introduced, where the analysis of the current state of supply logistics in the production hall is performed. Based on the analysis is designed kanban system including the way of its implementation. Furthermore, the risks of kanban system implementation are analyzed. Finally, the economic and uneconomic benefits of the kanban system for the company are evaluated.

The subject of the submitted thesis is analysis of the present state of forwarding in a manufacturing-oriented firm and a concept of reduction in logistics costs by implementation of system just-in time or outsourcing.

The just-in-time purchasing literature resoundingly endorses long-term, cooperative buyer-supplier relationships. Significant anecdotal and descriptive evidence indicates that such relationships are rare in practice, raising questions as to the performance consequences of this gulf between theory and practice. Using an accepted theoretical model of the buyer-supplier relationship, transaction cost economics, this study examined the purchasing performance implications of the nature of the buyer-supplier relationship under just-in-time exchange. The focal purpose of the study was to examine the performance consequences of crafting long-term, cooperative relationships. The research design employed was a cross-sectional field study, involving a static-group comparison, implemented through the use of a mail survey. A dual-stage cluster sample of eight hundred purchasing managers and professionals employed in the two digit Standard Industrial Classification (SIC) Code 36, Electronic and Other Electrical Equipment and Components, was provided by the National Association of Purchasing Management (NAPM). The questionnaire was pretested and the substantive validity of the measurement scales assessed. Scales were purified via correlational and reliability analyses. Criterion-related and construct validity were established via correlational, exploratory factor, and confirmatory factor analyses. The three hypotheses of the study, involving extant tests of the association between the nature of the buyer-supplier relationship and purchasing performance (i.e., as reflected by transaction costs), were tested via analysis of covariance (ANCOVA) models. All three hypotheses were supported by the data to varying degrees. The confirmation of the theoretical model of the study provides empirical evidence to researchers and practitioners as to the superiority, in exchange efficiency terms, of cooperative relationships under conditions of just-in-time exchange. It may not be presumed, however, that cooperative exchange will enhance efficiency in all exchange environments.