838 resultados para lean thinking
Resumo:
The paper proposes a methodology especially focused on the generation of strategic plans of action, emphasizing the relevance of having a structured timeframe classification for the actions. The methodology explicitly recognizes the relevance of long-term goals as strategic drivers, which must insure that the complex system is capable to effectively respond to changes in the environment. In addition, the methodology employs engineering systems techniques in order to understand the inner working of the system and to build up alternative plans of action. Due to these different aspects, the proposed approach features higher flexibility compared to traditional methods. The validity and effectiveness of the methodology has been demonstrated by analyzing an airline company composed by 5 subsystems with the aim of defining a plan of action for the next 5 years, which can either: improve efficiency, redefine mission or increase revenues.
Resumo:
Management systems standards (MSSs) have developed in an unprecedented manner in the last few years. These MSS cover a wide array of different disciplines, aims and activities of organisations. Also, organisations are populated with an enormous diversity of independent management systems (MSs). An integrated management system (IMS) tends to integrate some or all components of the business. Maximising their integration in one coherent and efficient MS is increasingly a strategic priority and constitutes an opportunity for businesses to be more competitive and consequently, promote its sustainable success. Those organisations that are quicker and more efficient in their integration and continuous improvement will have a competitive advantage in obtaining sustainable value in our global and competitive business world. Several scholars have proposed various theoretical approaches regarding the integration of management sub-systems, leading to the conclusion that there is no common practice for all organisations as they encompass different characteristics. One other author shows that several tangible and intangible gains for organisations, as well as to their internal and external stakeholders, are achieved with the integration of the individual standardised MSs. The purpose of this work was to conceive a model, Flexible, Integrator and Lean for IMSs, according to ISO 9001 for quality; ISO 14001 for environment and OHSAS 18001 for occupational health and safety (IMS–QES), that can be adapted and progressively assimilate other MSs, such as, SA 8000/ISO 26000 for social accountability, ISO 31000 for risk management and ISO/IEC 27001 for information security management, among others. The IMS–QES model was designed in the real environment of an industrial Portuguese small and medium enterprise, that over the years has been adopting, gradually, in whole or in part, individual MSSs. The developed model is based on a preliminary investigation conducted through a questionnaire. The strategy and research methods have taken into consideration the case study. Among the main findings of the survey we highlight: the creation of added value for the business through the elimination of several organisational wastes; the integrated management of the sustainability components; the elimination of conflicts between independent MS; dialogue with the main stakeholders and commitment to their ongoing satisfaction and increased contribution to the company’s competitiveness; and greater valorisation and motivation of employees as a result of the expansion of their skill base, actions and responsibilities, with their consequent empowerment. A set of key performance indicators (KPIs) constitute the support, in a perspective of business excellence, to the follow up of the organisation’s progress towards the vision and achievement of the defined objectives in the context of each component of the IMS model. The conceived model had many phases and the one presented in this work is the last required for the integration of quality, environment, safety and others individual standardised MSs. Globally, the investigation results, by themselves, justified and prioritised the conception of an IMS–QES model, to be implemented at the company where the investigation was conducted, but also a generic model of an IMS, which may be more flexible, integrator and lean as possible, potentiating the efficiency, added value both in the present and, fundamentally, for future.
Resumo:
The ability to foresee how behaviour of a system arises from the interaction of its components over time - i.e. its dynamic complexity – is seen an important ability to take effective decisions in our turbulent world. Dynamic complexity emerges frequently from interrelated simple structures, such as stocks and flows, feedbacks and delays (Forrester, 1961). Common sense assumes an intuitive understanding of their dynamic behaviour. However, recent researches have pointed to a persistent and systematic error in people understanding of those building blocks of complex systems. This paper describes an empirical study concerning the native ability to understand systems thinking concepts. Two different groups - one, academic, the other, professional – submitted to four tasks, proposed by Sweeney and Sterman (2000) and Sterman (2002). The results confirm a poor intuitive understanding of the basic systems concepts, even when subjects have background in mathematics and sciences.
Resumo:
The ability to foresee how behaviour of a system arises from the interaction of its components over time - i.e. its dynamic complexity – is seen an important ability to take effective decisions in our turbulent world. Dynamic complexity emerges frequently from interrelated simple structures, such as stocks and flows, feedbacks and delays (Forrester, 1961). Common sense assumes an intuitive understanding of their dynamic behaviour. However, recent researches have pointed to a persistent and systematic error in people understanding of those building blocks of complex systems. This paper describes an empirical study concerning the native ability to understand systems thinking concepts. Two different groups - one, academic, the other, professional – submitted to four tasks, proposed by Sweeney and Sterman (2000) and Sterman (2002). The results confirm a poor intuitive understanding of the basic systems concepts, even when subjects have background in mathematics and sciences.
Resumo:
A competitividade entre as empresas e a busca por modelos de gestão e organização cada vez mais eficientes, tem dominado a actualidade. A filosofia de gestão Lean vem dar resposta a essas necessidades de aumento dos níveis de competitividade e eficiência, através de uma mudança da cultura organizacional, que assenta na redução ou eliminação de desperdícios e na melhoria contínua dos processos de fabrico de bens ou do fornecimento de serviços. A gestão Lean é suportada e implementada pela aplicação de um conjunto de ferramentas correctamente seleccionadas e adaptadas ao contexto organizacional da empresa ou organização. A presente dissertação visa caracterizar as ferramentas mais comuns da filosofia Lean, tendo em consideração a sua aplicabilidade na indústria e no sector dos serviços. É igualmente abordada a forma de aplicação das ferramentas Lean de maneira a que não constituam um acto isolado que conduz seguramente ao fracasso da implementação Lean na organização. Por essa razão são discutidas algumas regras e critérios, com base na proposta de um método de aplicação das ferramentas Lean que evite erros cometidos no passado e que levaram ao insucesso da aplicação do Lean em algumas organizações. Recorreu-se a um estudo de caso do ramo dos serviços, cujos resultados permitiram verificar a aplicabilidade do método proposto na aplicação de ferramentas Lean ao ramo dos serviços. O estudo de caso revelou a existência de uma elevada percentagem de desperdícios no processo em análise e permitiu melhorar o funcionamento desses mesmos processos. As melhorias alcançadas foram realizadas com base na eliminação dos desperdícios, na resolução de problemas e consequente uniformização de processos que melhoraram a qualidade e eficiência do serviço prestado, evidenciando que a organização alvo do estudo se encontra no bom caminho para atingir com sucesso a alteração da cultura organizacional para a filosofia Lean.
Resumo:
This article describes the main research results in a new methodology, in which the stages and strategies of the technology integration process are identified and described. A set of principles and recommendations are therefore presented. The MIPO model described in this paper is a result of the effort made regarding the understanding of the main success features of good practices, in the web environment, integrated in the information systems/information technology context. The initial model has been created, based on experiences and literature review. After that, it was tested in the information and technology system units at higher school and also adapted as a result of four cycles of an actionresearch work combined with a case study research. The information, concepts and procedures presented here give support to teachers and instructors, instructional designers and planning teams – anyone who wants to develop effective b‐learning instructions.
Resumo:
A competitividade entre empresas e o preço excessivo dos produtos que os clientes não querem pagar, faz com que as empresas tomem medidas para evitar todo o tipo de desperdícios, rentabilizando ao máximo a sua cadeia de valor. A filosofia Lean foi uma das formas encontradas para identificar e eliminar alguns desses desperdícios, melhorando o processo produtivo e desta forma tornando as empresas mais competitivas. O Lean tem várias ferramentas podendo ser aplicadas em diversas áreas. Uma dessas áreas é a manutenção, onde se pretende que os equipamentos operem sem interrupções e com uma produção de qualidade. Algumas das ferramentas do Lean encaixam-se perfeitamente na área da manutenção para identificação de desperdícios, criação de valor, realização de planeamento, melhoria do sistema de trabalho na organização e até no próprio desenvolvimento dos trabalhadores. A presente dissertação visa mostrar algumas das ferramentas mais comuns da filosofia Lean com aplicabilidade na manutenção industrial. As ferramentas utilizadas servem sobretudo para identificar os desperdícios e criação de valor nesta área. Esta dissertação visa melhorar o desempenho nas actividades de manutenção industrial, envolvendo também a produção, serviços administrativos e segurança, entre outros. Com o presente trabalho ficou demostrado que antes da aplicação da filosofia Lean os desperdícios eram enormes e pouco visíveis aos trabalhadores e administradores da empresa. Depois de se aplicar a filosofia Lean constata-se que os custos com os desperdícios diminuíram drasticamente.