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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Aplicação da técnica de eventos Kaizen na implantação de produção enxuta: estudo de casos em uma empresa de autopeças / Application of the Kaizen events technique to implement lean production: case study in an auto parts company

Reali, Luiz Paulo Penalva 06 October 2006 (has links)
As estratégias para tornar as empresas mais competitivas apontam para a necessidade de redução de custos de produção e melhoria da qualidade dos produtos. Nesta direção o trabalho apresentado visa a incorporação dos princípios Lean de como diminuir os custos de produção e melhorar a qualidade dos produtos baseada na utilização dos elementos da manufatura enxuta através da técnica de eventos Kaizen. O uso isolado de ferramentas como o mapa de fluxo de valor fornece direção clara do que melhorar e possibilita enxergar o todo. Porém, ela não dá a receita de como transformar ou como fazer com que as pessoas contribuam para atingir os estados futuros. Existe a necessidade de transformar os processos e, também, as pessoas que neles trabalham. É preciso dar poder às pessoas para contribuir. A técnica de eventos Kaizen preconiza o comprometimento das pessoas e em muitos casos tem início de forma rápida e positiva, mas em pouco tempo as pessoas envolvidas esmorecem, pois os resultados na forma de lucros e melhoria substancial da qualidade não aparecem. Os eventos são realizados de forma isolada com utilização dos recursos em situações que aparentemente não são os pontos críticos do sistema. Em outras situações, as ferramentas aplicadas nos eventos não estão claramente entendidas pelos participantes e não conseguem resolver o problema focado. Por fim, nos eventos eficazes, os resultados não são sustentados por falta de acompanhamento das ações implantadas, ou mesmo, dos indicadores relacionados ao desempenho da área. Neste panorama, após uma revisão teórica dos principais elementos que levam uma organização a tornar-se Lean, o trabalho busca verificar se fatores como processo decisório de onde aplicar a técnica, assim como, os indicadores de monitoramento implicam na eficácia e sustentação dos resultados dos eventos. A verificação foi realizada através da análise e estudo de uma seqüência de eventos realizados de 2002 a 2005 na unidade escolhida, gerando algumas recomendações para se melhorar o processo decisório baseando-se em indicadores financeiros relevantes e um diagnóstico da área avaliada. / The strategies to transform companies more competitive direct to enhance the regional market, production cost reduction and quality improvement. It is clear the necessity of studying effective ways to accomplish these targets. In this direction this dissertation intend to study a technique that reduces the production costs and improve the quality levels based on the implementation of lean concepts through a Kaizen events technique. The isolated use of tools like value stream mapping gives a clear view of the whole picture but does not give the direction of how implement the future state and more important make the people committed allowing them contribute for the change. There is a need for change the process as well as the people. To accomplish this, the Kaizen technique can help or not depending how it is implemented. At first the technique really stimulates people to participate and get involved but soon the events do not give the expected results and the people involvement decrease. The events are realized in areas not relevant and the events are not sustained due to lack of monitoring process. In this scenario after a theory review of the lean journey, the dissertation verified if factors such as decision process on where to apply the technique and how to measure the improvement reached influence on the effectiveness and sustainability of the events’ results. It ended up with recommendations of a decision process based on financials metrics and a lean diagnosis of the evaluated area in order to really identify the business problem as well as the priority to address it solution.
2

An initial evaluation of a method for adopting kaizen events in the construction sector / Evaluación inicial de un método para adoptar eventos kaizen en el sector de la construcción

Arriola Oliveros B., Arriola Oliveros, B., Arriola Oliveros, B., Denis Granja, A., Rodríguez Dionisio, S. 01 April 2018 (has links)
Currently, construction companies have shown a need to adopt process improvement systems in order to function competitively in the market. However, civil construction, compared to the manufacturing, still has deficiencies relating to the incorporation of new improvement systems. Thus, the use of Kaizen Events (KE) is one of the main mechanisms used to perfect processes during the production (execution) phase of a product, ensuring enhanced performance and added value to the client. The present research sought to evaluate a method for adopting KE in the construction sector. The data-gathering tools used were a questionnaire and a focus group where academics and/or experts who fit a specific profile participated. A methodological strategy for the development of the work was adopted under the approach of Design Science Research (DSR) and the theoretical referential was developed from a Systematic Literature Review (SLR). Improvements were made to the method to improve its applicability and functionality in real life scenarios using the results obtained. Accordingly, the results show horizons for future research on KE in civil construction. / Revisión por pares
3

Aplicação da técnica de eventos Kaizen na implantação de produção enxuta: estudo de casos em uma empresa de autopeças / Application of the Kaizen events technique to implement lean production: case study in an auto parts company

Luiz Paulo Penalva Reali 06 October 2006 (has links)
As estratégias para tornar as empresas mais competitivas apontam para a necessidade de redução de custos de produção e melhoria da qualidade dos produtos. Nesta direção o trabalho apresentado visa a incorporação dos princípios Lean de como diminuir os custos de produção e melhorar a qualidade dos produtos baseada na utilização dos elementos da manufatura enxuta através da técnica de eventos Kaizen. O uso isolado de ferramentas como o mapa de fluxo de valor fornece direção clara do que melhorar e possibilita enxergar o todo. Porém, ela não dá a receita de como transformar ou como fazer com que as pessoas contribuam para atingir os estados futuros. Existe a necessidade de transformar os processos e, também, as pessoas que neles trabalham. É preciso dar poder às pessoas para contribuir. A técnica de eventos Kaizen preconiza o comprometimento das pessoas e em muitos casos tem início de forma rápida e positiva, mas em pouco tempo as pessoas envolvidas esmorecem, pois os resultados na forma de lucros e melhoria substancial da qualidade não aparecem. Os eventos são realizados de forma isolada com utilização dos recursos em situações que aparentemente não são os pontos críticos do sistema. Em outras situações, as ferramentas aplicadas nos eventos não estão claramente entendidas pelos participantes e não conseguem resolver o problema focado. Por fim, nos eventos eficazes, os resultados não são sustentados por falta de acompanhamento das ações implantadas, ou mesmo, dos indicadores relacionados ao desempenho da área. Neste panorama, após uma revisão teórica dos principais elementos que levam uma organização a tornar-se Lean, o trabalho busca verificar se fatores como processo decisório de onde aplicar a técnica, assim como, os indicadores de monitoramento implicam na eficácia e sustentação dos resultados dos eventos. A verificação foi realizada através da análise e estudo de uma seqüência de eventos realizados de 2002 a 2005 na unidade escolhida, gerando algumas recomendações para se melhorar o processo decisório baseando-se em indicadores financeiros relevantes e um diagnóstico da área avaliada. / The strategies to transform companies more competitive direct to enhance the regional market, production cost reduction and quality improvement. It is clear the necessity of studying effective ways to accomplish these targets. In this direction this dissertation intend to study a technique that reduces the production costs and improve the quality levels based on the implementation of lean concepts through a Kaizen events technique. The isolated use of tools like value stream mapping gives a clear view of the whole picture but does not give the direction of how implement the future state and more important make the people committed allowing them contribute for the change. There is a need for change the process as well as the people. To accomplish this, the Kaizen technique can help or not depending how it is implemented. At first the technique really stimulates people to participate and get involved but soon the events do not give the expected results and the people involvement decrease. The events are realized in areas not relevant and the events are not sustained due to lack of monitoring process. In this scenario after a theory review of the lean journey, the dissertation verified if factors such as decision process on where to apply the technique and how to measure the improvement reached influence on the effectiveness and sustainability of the events’ results. It ended up with recommendations of a decision process based on financials metrics and a lean diagnosis of the evaluated area in order to really identify the business problem as well as the priority to address it solution.
4

An Empirical Investigation on the Critical Success Factors for Kaizen Events in Hospitals

Harry, Kimberly D.M. 06 September 2023 (has links)
A Kaizen event (KE) may be defined as a structured improvement project that uses a cross-functional team and specific improvement goals to improve a targeted work area or process in an accelerated time frame. KEs, also known as Rapid Improvement Events (RIEs), have been utilized within hospitals to achieve beneficial operations, stakeholder (i.e., social), financial, and clinical outcomes. Due to their potential to achieve positive results in a rapid timeframe, understanding the determinants of KE success within a hospital environment is a valuable research undertaking. To date there has been limited rigorous empirical quantitative research focused on identifying success factors (SFs) influencing socio-technical outcomes of hospital-based KEs. Hence, this empirical research study seeks to determine the critical success factors (CSFs) for KEs in hospitals. For the first phase of this research work, a comprehensive systematic literature review (SLR) was conducted to identify the success factors (SFs) for KEs in hospitals as reported in the literature. This SLR resulted in the identification of 54 unique success factors mapping to four broad success factor categories, KE Task Design, KE Team Design, Organization, and KE Process. Thereafter, the second phase, which involved the variable reduction process, was performed to determine the strength of effect, or importance, of the SFs in order to determine a feasible number of SFs to include in further empirical work. Two robust methods were applied; a Meta-synthesis Evaluation and an Expert Survey, to query the SFs and to determine high priority factors for the empirical study. As a result, a total of 30 factors were finalized for empirical study. Next, the last phase, the empirical study to investigate and determine the CSFs for KEs in hospitals, was executed using a retrospective field study survey research design. Specifically, a survey questionnaire was designed to elicit feedback on perceptual measures from targeted hospital KE facilitators/leaders on the criticality of SFs on socio-technical outcomes for KEs in hospitals. Sixty usable responses were obtained, which were subjected to Exploratory Factor Analysis (EFA) and Partial Least Squares-Structural Equation Modeling (PLS-SEM), which were used to identify latent factor constructs and to determine the significance of the SFs, respectively. The results of this study identified seven significant direct relationships. Kaizen Event Design Characteristics (KEDC) and Target Area Buy-in (TABI) were found to have significant direct effects with both dependent variables, Performance Impact (PI) and Growth in Kaizen Capabilities (KCG). In addition, KEDC also had a significant direct relationship with Performance Culture (PC) and Team Dynamics (TD), respectively. Also, PC has a significant direct relationship with TD. Furthermore, Logistic Regression was utilized to test the SFs impact on the one objective technical outcome measure in the study, Goal Attainment (GOALATT). This analysis revealed one significant negative relationship occurring between TD and GOALATT. Overall, the study's findings provide evidence-based results for informing hospital managers, leaders, and continuous improvement practitioners on the key factors or value-added practices that can be adopted in their hospital KE initiatives to achieve beneficial socio-technical outcomes, as well as overall hospital KE success. Furthermore, this research can enable academia/researchers to strategize more confirmatory analysis approaches for theory validation and generalizability. / Doctor of Philosophy / The focus of this research study is to identify the most significant factors for Kaizen events (KEs) in hospitals, referred herein as critical success factors (CSFs). A KE may be defined as a structured improvement project that uses a cross-functional team and specific improvement goals to improve a targeted work area or process in an accelerated time frame. The aim of the study is to ultimately improve KE practice in hospitals through increased understanding of CSFs that can be planned or designed into KE processes to increase the likelihood of successful event outcomes. Various research formulation, development, and testing techniques are applied to frame the research study according to the aims and objectives and to achieve targeted research outcomes. The overall research design encompasses a retrospective study approach, performing a large-scale field study using a survey questionnaire to empirically identify the CSFs for KEs in hospitals. To help frame the research, a systematic literature review (SLR) along with bibliometric analyses were conducted. To help refine and select the success factors for empirical study, a meta-synthesis evaluation and an expert survey study were conducted. Exploratory factor analysis (EFA) and partial least squares-structural equation modeling (PLS-SEM) along with mediation analyses (MA) were performed to identify key factors, determine the significance of those factors, and to understand the influential relationships of those factors to hospital KE success. Results from this study aim to inform healthcare managers, healthcare improvement practitioners, researchers, and other relevant stakeholders about the critical components needed to achieve hospital KE success. The dissertation is documented according to a "manuscript style," using a journal/conference paper format to organize and report on the key findings and results obtained from the investigation. The Introduction chapter is provided to introduce the research study topic, study significance, indicate the overall research aims and objectives, present the overall research approach and design methodology, and to enumerate the main publication outputs and outcomes from this dissertation work. The Conclusions chapter summarizes the overall research outcomes, key study findings, study limitations, and provides areas for future research.

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