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Process Modeling and Execution in Non-Enterprise System IntegrationFang, Miao January 2012 (has links)
Context. Manufacturing Execution Systems (MES) are information systems that manage manufacturing processes in factories. The execution of MES processes requires non-enterprise integration, which integrates MES applications, services, and automation systems within the factories. Objectives. We aim at developing a modeling approach that can be used to represent and execute MES processes. Having such an approach would help MES vendors to reduce the development cost to reconfigure systems, in order to achieve better business flexibility. Methods. In order to understand the state of the art of manufacturing modeling techniques, we perform a systematic literature review (SLR) in scientific article sources, including IEEE Xplore, ACM Digital Library, Compendex, Inspec, and Springer Link. In consideration of the criteria in modeling and executing MES processes, we evaluate the selected process modeling techniques. Based on the result of evaluation, we propose a three-view-based approach to support process execution. We develop a prototype to prove that an MES process can be executed by following our approach. We also conduct semi-structured interviews in industry to validate whether our proposed approach achieves the objectives. Results. In the SLR, 24 primary studies are selected. Our analysis reveals that existing modeling techniques have limitations to enable process execution. To overcome the limitation, we propose a three-view-based approach, which has an MES process view, an abstract plant view to represent the structure of technical systems, and a mapping view to enable the communication between MES tasks and the technical systems. We develop a prototype as the implementation of our approach, which comprises: a graphical editor for the abstract plant view, a generator of message routes for the mapping view, and a typical MES process to be executed in the context of a warehouse management system. The semi-structured interviews we conducted with three industrial experts show positive feedback to use and generalize our approach in industry, in case comprehensive tools can be established. Conclusions. Compared to the existing modeling techniques, the three-view-based approach is specifically tailored toward process execution. Based on the feedback from industry, we conclude that applying our approach provides the possibility to achieve better reconfigurability and flexibility of MES.
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A utilização de sistema MES s na aplicação da gestão do conhecimento para melhoria de desempenho e adaptação do processo produtivo de montagem automática de placas eletrônicasSilva, Antonio Marcos da 28 August 2014 (has links)
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Previous issue date: 2014-08-28 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This research present the use of MES System in the systematic application of
Knowledge Management in an electronic product manufacturing company, implanted
in an environment of constantly increasing competitiveness with technological
innovations that generate instability in a market with life cycle of products and
services ever getting smaller, with more demanding consumers, unstable demands
and small profitability, that characterize a behavior of complex and adaptive
organization. Maximization of profitability occurs fundamentally through the reduction
of manufacturing cost, which represents, in general, 20% of the final cost of the
product, where the remaining relates to components and raw materials. The
manufacturing costs can be reduced through the elimination of losses and
rationalization of flow of the production process, with application of knowledge
management in achieving improvement and innovations for necessary adaptation
ahead of internal (industrial) and external (market) changes. It’s a fact that, the
assembling of most parts of electronic products involve a process of various stages,
the purpose of the research was the bottleneck stage of the process which relies on
resources of significant values and highly skilled operators. Even with all its
significance to the production chain many weaknesses were identified which were
not perceived based on realities of the past. These points were corrected with
application of the proposed methodology and the results prove the relevance of the
MES tool for development and consolidation of the organizational competitiveness. / Essa pesquisa mostra o uso do Sistema Manufacturing Execution Systems (MES) na
aplicação sistêmica da Gestão do Conhecimento em uma empresa de manufatura
de produtos eletrônicos, inserida em um ambiente de competitividade crescente com
inovações tecnológicas frequentes. Esse quadro gera instabilidade no mercado
devido ao fato de produtos e serviços apresentarem ciclo de vida cada vez menores,
de consumidores serem mais exigentes, de haver demandas instáveis num contexto
de pequena rentabilidade, o que caracteriza um comportamento de organizações
complexas e adaptativas. A maximização da rentabilidade ocorre fundamentalmente
através da redução do custo de manufatura, pois esse item representa, em geral,
20% do custo final do produto, ao passo que o restante refere-se a componentes e
insumos commodities. Tal redução apresenta como pressupostos a eliminação de
perdas e a racionalização do fluxo do processo produtivo, com aplicação da gestão
do conhecimento na obtenção de melhorias e inovações para as adaptações
necessárias diante das mudanças internas (fabril) e externas (mercado). Em
decorrência de a montagem de grande parte dos produtos eletrônicos apresentarem
um fluxo de processos com várias etapas, o objeto da pesquisa foi a fase gargalo do
processo que conta com os recursos de valores expressivos e operadores mais
capacitados. Mesmo com toda essa significância para a cadeia produtiva
identificaram-se muitos pontos frágeis, antes despercebidos, com base na realidade
anterior. Tais pontos foram corrigidos com a aplicação da metodologia proposta,
com os resultados comprovando a relevância do uso da ferramenta MES para o
desenvolvimento e consolidação da competitividade da organização.
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