286,334 research outputs found
Moving on - beyond lean thinking
No full textLean Thinking is currently often positioned as the underlying theory of lean production among practitioners and academics, although its originators, Womack and Jones, seem not to have presented it as a theory. This paper endeavors to analyze whether Lean Thinking can be viewed as a theory of lean production. For this purpose, a critical assessment of Lean Thinking is carried out. Lean Thinking is argued to lack an adequate conceptualization of production, which has led to imprecise concepts, such as the term “value”. The five principles of Lean Thinking do not orderly cover value generation, and they do not always encapsulate the core topics in their respective areas. The failure to trace the origin of lean concepts and principles reduces the opportunity to justify and explain them. Despite claims for generality, the application area of the five lean principles is limited to the transformation of mass production, with, for instance, one-of-a-kind production and construction being largely out of scope. It is concluded that it is opportune to move on beyond Lean Thinking, towards a generic theory of production, for acquiring a solid foundation for designing, operating and improving production systems
The contribution of industry 4.0 to lean manufacturing
No full textThe term Industry 4.0 (I.4.0) has often been cited and is directly linked to the future of manufacturing activities, and within this context, interfaces with other concepts such as Lean Manufacturing occur, and the latter can benefit from the benefits generated by applying the principles, tools and techniques of I.4.0. The present work has the purpose of analyzing the influence of I.4.0 on Lean Manufacturing. The methodology used consists of a qualitative exploratory bibliographic study through the analysis and evaluation of papers, books and periodicals in a virtual environment, in the main databases (web of science, scopus, google scholar and emerald insight) and the results presented through the qualification the importance and applicability of the concepts of I.4.0 in Lean Manufacturing
Kreativitet, innovation och lean
No full textHur kan det komma sig att idéer från japansk bilindustri får en så stor spridning i Norden inom så vitt skilda verksamheter som sjukvård, administration och gruvindustri? Ett svar som ges i denna bok är att idéerna har anpassats till västerländska samhällen genom begreppet lean produktion som lanserades vid 1990-talets början. Efter millennieskiftet kom en ny våg av lean, med olika tolkningar av begreppet och med spridning till allt fler verksamheter</p
Barriers for lean healthcare implementation: a systematic literature review
No full textThe literature has shown that some barriers can hinder the implementation of lean healthcare, negatively impacting the sustainability of this production system. Therefore, this paper aims to identify barriers to implementing lean healthcare, proposing principles and tools to deal with such barriers through a systematic literature review. Most of the papers focus only on the improvements provided by the implementation of lean healthcare. The analyses also showed that the papers focus on necessary factors for implementation, principles, methods, and implementation benefits. Tools, principles, and barriers to lean healthcare implementation were also identified. The barriers were grouped into five categories: (i) complexity of health systems; (ii) human factors; (iii) lack of a methodology; (iv) supply chain; and (v) lack of culture and a long-term vision. Recognizing lean implementation barriers allowed identifying problems and suggesting tools and principles dealing with barriers\u27 challenges regarding lean production implementation. The paper contributes to lean healthcare practice, recognizing barriers that hinder this process, enabling managers to direct their efforts to deal with these challenges
Critical Flow – Towards a Construction Flow Theory
No full textThis paper introduces the concept of Construction Physics as a more comprehensive way of understanding the construction process from a flow perspective. It establishes a preliminary definition of the term and investigates briefly the present knowledge, flow models and methods for their management. From this it argues that the state of the art does not fully cover the whole process and proposes a holistic view of the flow of all prerequisites feeding the process. It introduces the key term Critical Flow and concludes by recommending areas that should be investigated as a joint IGLC research, development and testing programme
Evaluating lean in healthcare
No full textThe overarching aim of this thesis is to evaluate Lean implementation in the
English NHS. Against a background of financial austerity measures and the
ostensible widespread adoption of Lean in the UK public sector, and particularly
by healthcare organisations, the objective is to understand how Lean is being
implemented by NHS hospital Trusts, and whether there is any quantitative
evidence that Lean implementation is improving hospital performance. Adopting
Pettigrew and Whipp’s (1991) framework of strategic change, this thesis aims to
present theoretically sound and practically useful research through an exploration
of the context, process and content of Lean implementation by English hospital
Trusts. In order to achieve this, the research employs a mixed methods research
design incorporating document analysis3, quantitative analysis and case study
analysis to afford an insight into the implementation of Lean from multiple
viewpoints and facilitate the development of new insights relating to the
phenomena of Lean implementation in English hospital Trusts.
The research provides a contribution to knowledge in three key areas: firstly
through the identification and validation of a typology of approaches to Lean
implementation by English hospital Trusts i.e. a characterisation of the method of
Lean implementation; secondly through quantitative analysis and discussion of
the potential link between Lean implementation and increased performance; and
thirdly a set of propositions that provide a narrative and logic to explain the
influence of contextual factors upon the process of Lean implementation in
English hospitals
Beyond Lean: Simulation in Practice
No full textLean thinking, as well as associated processes and tools, have involved into a ubiquitous perspective for improving systems particularly in the manufacturing arena. With application experience has come an understanding of the boundaries of lean capabilities and the benefits of getting beyond these boundaries to further improve performance. Discrete event simulation is recognized as one beyond-the-boundaries of lean technique. Thus, the fundamental goal of this text is to show how discrete event simulation can be used in addition to lean thinking to achieve greater benefits in system improvement than with lean alone. Realizing this goal requires learning the problems that simulation solves as well as the methods required to solve them. The problems that simulation solves are captured in a collection of case studies. These studies serve as metaphors for industrial problems that are commonly addressed using lean and simulation.https://scholarworks.gvsu.edu/books/1001/thumbnail.jp
Towards lean product and process development
No full textSuccesses in lean manufacture have led researchers and practitioners to consider extending ‘lean' to different parts of the engineering enterprise, including product and process development (PPD). Lean product development (PD) has been understood to mean lean manufacture applied to PD, while the roots of lean PD - just like lean manufacture - go back to Toyota. This article presents the methodology adopted in order to pave the way towards a coherent lean PD model that combines lessons from the Toyota product development system (TPDS) with other best practises. The article provides a unique review of the lean PD research area, and a reference framework for the enablers that Toyota has employed for lean PD. An investigation of five engineering enterprises undertaken to search for evidence of the implementation of lean PD enablers through observation, document analysis and interviews is also presented. Some enablers have been informally applied, while few have been formally implemented, and no model was found to formally combine lean PD enablers into a coherent whole. This is the first article to critique attempts to describe lean PD and provide a definition for Lean PD
A lean framework for tooling design process in Chinese aerospace
No full textLean Manufacturing (LM) has been used in production processes to help manufacturing companies maintain competitive advantages for decades. However, with the increasingly fierce competition and pressure to sustain survival and long-term growth, enterprises cannot be satisfied with just improving the performance of a single process. Therefore, adoption of lean to the whole product development processes has become a necessity.
There is evidence that lean thinking and some lean manufacturing tools are able to improve Product Development (PD) processes. Thus, terms of Lean Product Development (Lean PD) and Lean Product and Process Development (Lean PPD) are becoming popular in engineering fields.
In this project, the research aimed to improve the tooling design situation in Chinese aerospace by implementing lean techniques to the design process. Tooling is an indispensible part of aircraft manufacturing and assembly. The quality and development time can influence aircraft quality and delivery time. However, there is little research about the lean techniques implementation based on aircraft tooling design characteristics and there are few lean frameworks for aircraft tooling design process. Therefore, this research will be conducted to fill this gap.
The research comprised four phases. In the first phase, a comprehensive literature review about lean (lean thinking and lean manufacturing), Lean PD and Lean PPD, tooling design, lean models/frameworks and the relationship between lean and organisational culture was conducted. In the second phase, data and information from three Chinese aircraft manufacturing companies (Company A, B and C) and literature were collected and analysed, aiming to discover the current lean implementation status in tooling design process and find improvement opportunities. In the third stage, a lean framework for tooling design process was synthesised. Finally, the proposed framework was validated by academic and industry experts. Finally, the research can contribute to companies which need a lean transformation. Moreover, the lean framework also could be used as a reference for research in lean and tooling design field
Beyond Lean: Simulation in Practice, Second Edition
No full textLean thinking, as well as associated processes and tools, have involved into a ubiquitous perspective for improving systems particularly in the manufacturing arena. With application experience has come an understanding of the boundaries of lean capabilities and the benefits of getting beyond these boundaries to further improve performance. Discrete event simulation is recognized as one beyond-the-boundaries of lean technique. Thus, the fundamental goal of this text is to show how discrete event simulation can be used in addition to lean thinking to achieve greater benefits in system improvement than with lean alone. Realizing this goal requires learning the problems that simulation solves as well as the methods required to solve them. The problems that simulation solves are captured in a collection of case studies. These studies serve as metaphors for industrial problems that are commonly addressed using lean and simulation.https://scholarworks.gvsu.edu/books/1006/thumbnail.jp
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