120 research outputs found

    The role of lean training in lean implementation

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    [Excerpt] Lean thinking was proposed by Womack & Jones (1996) as an interpretation of the way Toyota was successfully approaching its production system. The body of knowledge around the lean philosophy has been built over the years by practitioners and scholars from around the world and an interesting example of a conceptual model of lean tools and principles was proposed by Hodge et al (2011). The implementation of lean principles, concepts and tools is quite popular in many types of organization around the world but not always with success (Negrão, et al, 2017). Lean training is referred to frequently in the literature as playing an important role in the success of lean implementation and in continuous improvement programmes. Shrimali & Soni (2017) reported that one of the limitations observed for successful implementations of lean in SMEs was the poor training. Another study (Netland, 2016) shows that after management commitment and involvement comes training, and education as the most commonly reported critical success factor in the improvement programme literature. Similar results were also reported by Yamchello et al (2014). Lean in education and training can be divided into two distinctive areas of knowledge and work. One area can be called Lean Teaching and the other area can be called Teaching Lean. The Teaching Lean area can be described as the way students and professionals can be effectively trained on Lean principles, concepts and tools so they can apply Lean in real contexts such as factories and other organizations. This area is quite a large subject with fast growing interest in recent years. The other area, Lean Teaching, can be described as how lean principles and concepts can be effectively applied in learning/training activities. There is a very interesting book on the subject published by Emiliani (2015) but this subject remains little explored by academic authors with very few articles published. Another closely-related area sometimes with confusing interpretation as Lean Teaching is the use of lean in schools and universities. In these cases the use of Lean is mainly applied in offices and other service areas that exist in academic organizations. [...]This work was supported by Fundacao para a Ciencia e a Tecnologia [UIDB/00319/2020]

    Continuous improvement system: team members’ perceptions

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    The complexity, competition and fast changing of the global market requires the companies to seek excellence, if they crave for good performance and success. To reach this purpose, it is mandatory the existence of a Continuous Improvement (CI) culture within the companies. This concept, also known as Kaizen, mean “change for the better” and it defends that a very large of small improvements applied and sustained over the time, brings more value than a few big improvements. The objective of this paper is to evaluate the effect of lean teamwork after a Continuous Improvement system had been implemented in Lipor, a Public Organization based in Oporto that treats the municipal waste. The CI system implemented a few years ago, was possible to maintain and adapt over the years through the creation of a Kaizen Team, Natural Teams, Project Teams and the cooperation between them, cultivating this Continuous Improvement culture in the company’s core. The results of the survey done to the workers regarding the CI system demonstrated that the majority consider that their work process has improved significantly with Kaizen and highlighted the importance for them to be involved in improving team’s processesFCT –Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/201

    Science Based Targets and the factors contributing to the sustainable development of an organisation from a Literature review to a conceptual model

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    Sustainable development is a subject of intense discussion, mainly due to climate change, pollution, and increased waste, among other factors. The governments of various countries worldwide have been setting environmental targets for emissions and consumption to combat climate change and improve the state of our planet. Therefore, it is necessary to have an environmental policy with stakeholder engagement. The literature review method, bibliometric analysis, and visual mappings were applied to understand how these sustainable targets are formulated and used by companies to comply with the limits proposed by governments. The Web of Science platform allowed data collection about Lean and Green, Key Performance Indicators (KPI), and Science-Based Targets (SBT). The carried analyses identified the most relevant papers using the PRISMA method, including their authors, their temporal distribution, and a correlation map using the VOSviewer tool. Hence, mapping the current state of the art concerning the SBT topic. Furthermore, a novel conceptual model is proposed to integrate lean and green and create new KPI applied to the definition of SBT to give companies a path and tools to achieve the climate targets efficiently. Future research should focus on the implementation of the con-ceptual model in several companies to understand its impact to correct and improve the conceptual model proposed.info:eu-repo/semantics/publishedVersio

    Waste identification diagrams

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    CLME'2011 / IIICEM – 6º Congresso Luso-Moçambicano de Engenharia - 3º Congresso de Engenharia de Moçambique Maputo, 29Ago - 2Set 2011 - Edições INEGI 2011, (ISBN: 978-972-8826-24-6), Ref: CLME’2011_0912AThe most popular and perhaps the most effective way to represent the material flow in production units is the diagram known as Value Stream Map (VSM). Moreover these maps are also used to help in the identification of waste as well as a tool to support continuous improvement. Nevertheless, many of VSM limitations are known and thus there is room for the creation of other more effective ways to represent productive units as well as helping the identification of production waste. This paper presents a new graphic representation model for production units, as a tool to identify three forms of waste, designated as Waste Identification Diagram (WID), which aims to provide information to top managers in a much more effective format. The WID is a network of blocks and arrows, showing visually the throughput times, idle capacity, transport effort, changeover times and work-in-process levels. To illustrate the main features of this new tool, the paper includes a WID of a real production unity

    Shame Memories and Depression Symptoms: The Role of Cognitive Fusion and Experiential Avoidance

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    Previous studies have suggested that shame memories can have a pervasive impact on depression symptoms, and avoidant-focused processes may play a mediating role. In addition, it is stated in Acceptance and Commitment Therapy (ACT) literature that experiential avoidance is a consequence of cognitive fusion. This study aims to explore the role of cognitive fusion and experiential avoidance in the relationship between shame memories (with caregivers and traumatic shame memories with others) and depression symptoms. In order to do that, we used Structural Equation Modeling to conduct a path analysis in a sample of 181 subjects of the general population. Our results add new information on the processes through which shame memories impacts on both experiential avoidance and depression symptoms. It is suggested that shame memories are not itself pervasive, but the entanglement with painful internal experiences (cognitive fusion) and/or the attempts to control them (experiential avoidance). This suggests the importance of planning an intervention that targets these processes when dealing with shame memories, particularly in patients with depression symptoms

    A student team project in real context: The team view

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    In the Industrial Engineering and Management Integrated Master course the projects in real industrial context are assumed to play a crucial role in the development of key technical and professional skills in students. In the 7 th semester of this integrated master course the students are involved in a large real context project integrating many different subjects covered in 5 different curricular units. Student teams must analyze and diagnose a production unit in a company, identify improving opportunities, design solutions and implement them if possible. These experiences are very demanding to students since many different uncontrollable variables are influencing their performance as team and as individuals. In this article the students will describe the experience from different perspectives, such as: personal interaction, group and project management, technical challenges, communication issues, as well as the challenges in meeting teachers and company staff expectations.(undefined)info:eu-repo/semantics/publishedVersio

    Improving the performance of student teams in project-based learning with Scrum

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    The purpose of this paper is to analyze the effectiveness of Scrum for project and team management in PBL teams in higher education. To attain this goal, a study was carried out to analyze students’ perceptions about Scrum as an effective method for PBL teams. Based on two different editions of PBL that used the Scrum method with different characteristics in each approach, this paper aims to identify the best practices for effective team and project management and draw recommendations for successful use of scrum in PBL approaches. The authors used an exploratory case study carried out within an engineering program at the University of Minho, Portugal. The research design was based on an explorative quantitative and qualitative approach. Implementing Scrum in PBL teams helps students to keep the project running smoothly and draws greater awareness on how to manage the project and teams in a more effective way. Findings show that task assignment, performance monitoring, visual management and regular feedback were considered the main advantages of using Scrum in PBL teams, which had a positive impact on student performance. However, for the success of Scrum, students recognize the role of the Scrum Master and Project Owner as vital to guide the teams in a sustainable way. Research on the application of Scrum in Education is scarce and mostly exploratory. This paper is among the very few empirical studies consolidating knowledge on the implementation of Scrum approaches to improve learning in higher education. More specifically, it brings a valuable contribution on how to improve specifically team performance in PBL teams with the use of agile approaches such as Scrum

    Implementation of lean principles for performance improvement: Use of VSM+WID for waste identification

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    This article demonstrates the implementation of lean principles for performance improvement in a manufacturing firm. Value stream mapping and waste identification diagrams (VSM+WID) are integrated to assess the level of currently existing waste and the overall current status of the manufacturing flow. The VSM+WID enables an increase in the awareness of relative waste distribution among different processes in the selected case study manufacturing unit. This manuscript demonstrates how to use VSM+WID to understand the current status of the manufacturing flow related challenges such as: overproduction, work-in-process, inefficient use of man-hours (e.g. unbalanced work distribution), etc. It also demonstrates the effectiveness of visualization of the performance gap between the current and future state. The aforementioned type of performance assessment enables effective identification of waste present in a manufacturing flow in order for future improvement initiatives to be taken.This work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and FCT – Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2013

    Assessment of the Impact of Lean Tools on the Safety of the Shoemaking Industry

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    Both the Lean philosophy and occupational safety and health have been widely studied, although this has usually been carried out independently. However, the correlation between Lean and occupational safety and health in the industrial context is still underexplored. Indeed, Lean tools can be applied to ensure the best safety environment for workers in each kind of manufacturing process, and this deserves to be studied. The study described here aims to understand the influence of each of a set of four Lean tools used in an industrial context with a strong manual labor component, seeking to determine the influence of each of these Lean tools on the increase in safety obtained through their application. For this purpose, four Lean tools that are quite commonly applied are selected, taking into account previously presented work that pointed to the positive influence of the application of each of these tools on worker safety: total productive maintenance system, Gemba walk, visual management and Yokoten. This study aims to apply these Lean tools and to analyze their impact on productivity, and then, on the safety of a company selected as a target in order to validate the concept. For this purpose, a new tool is created. In the first instance, the tool analyzes the current state of the productive process and the safety level through the study of the risk levels detected in the plant. In terms of productivity results, a reduction between 7% and 12% in cycle time is achieved in four areas of the plant. The feedback from employees showed increased satisfaction with the processes’ simplification. To conclude, a 50% reduction in the number of work accidents per month is observed as a result of the implementation of Lean tools. The influence of the selected Lean tools on increasing both productivity and safety is clear, and our results prove the selection of tools to be largely adequate.info:eu-repo/semantics/publishedVersio
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