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The sustainability of the Lean Six Sigma (LSS) program represents the most challenging aspect for most of the organizations dealing with this methodology. In this scenario, the purpose of this paper is the description of the AMSE (which stands for Assessment, Monitoring, Sustainability, Expansion) Model, that represents a leading-edge approach to implement an effective LSS deployment on a permanent basis, by means of a structured roadmap.

The AMSE roadmap is made of four operating phases – Assessment, Monitoring, Sustainability, Expansion – it is a Model to govern the LSS deployment and to maximize both operative and economical results on a long-term basis.

One of the main problems of LSS programs is their sustainability (sustainability of projects and the overall program) over time; the AMSE Model allows the deployment of an LSS Governance Structure with a clear definition of tasks; this model can be effectively applied both to small and medium enterprises (SMEs) and global companies, regardless of the sector.

Both SMEs and global corporations could benefit from applying the AMSE in terms of operational efficiency, culture improvement and people engagement.

The AMSE Model represents an innovative approach for sustaining a continuous improvement culture in the organizations over time, by defining four steps (Assessment, Monitoring, Sustainability, Expansion), divided into detailed tasks, each of which is characterized by its own specific tools.

The purpose of this paper is to investigate the contingency effects that contextual factors of a networked service environment have on the phased Lean Six Sigma (LSS) implementation frameworks.

This paper employs the critical realism (CR) case study research methodology to examine the contingent and causal relationships between contextual configurations of business networks, the DMAIC or PDCA phases in an LSS implementation agenda, and business management functions. The authors conducted a single case study on the basis of challenges they met in kicking off lean transportation in the Port of Houston.

The key finding from the study is a mid-range theory regarding the contingency effects of contextual factors of service business networks on the phased LSS implementation frameworks. The authors found that when there are complexity and dynamics of contextual factors at the field layer, management should focus more on tasks in early LSS phases to emphasize influencing. When there is no centralized authority in the network and the value-system is loosely coupled, management needs to execute more tasks as described in the define, measure and analyze phases with the purpose of both influencing and orchestrating. When individual actors have goals not aligned well with the goal of the business network and have unmatched operations capabilities, these factors should be considered as early as possible in these LSS phases. When a business network has complicated business processes with high unpredictability and uncertainty and individual actors’ value-creation systems are not well embedded in the entire value-creation system, PDCA will be the preferred core structure of an LSS implementation agenda.

This study contributes to the LSS research stream by introducing a causal/contingency model that prescribes the contingency effects of three contextual configurations on LSS implementation. It also contributes to the emerging discipline, business network management, regarding how to use LSS frameworks in strategic planning. It also contributes to the CR school of problem-driven case study by using a strategic initiative framework as a platform and each phase in the framework as a unit. This conceptualization of the entity of interest helps explore the interactions among three theoretical constructs: contextual configurations, phased LSS implementation agenda and management functions.

Managerial implications of this study are twofold. One is the procedure of analyzing the impacts of contextual factors on the causal relationships between LSS implementation phases and network management functions. The entire procedure represents the agenda-setting process of LSS implementation, the most daunting and challenging managerial task in LSS projects. Another one is the guideline on how to determine whether DMAIC or PDCA is appropriate for the LSS agenda when used in a networked environment.

This paper would serve as an excellent resource for both academicians and LSS practitioners in initiating, orchestrating and managing an LSS project in a networked service environment. This study represents the first effort to explore the impact of contextual factors of business networks on lean transformation.

The purpose of this paper is to clarify the lesson study (LS) processes and evaluate their effectiveness in Japanese elementary and secondary (middle and high) schools, through a school survey by the National Institute for Educational Policy Research of Japan (NIER).

The authors randomly selected 1,000 elementary schools and 1,000 middle schools and 500 high schools in Japan. Survey items are methods of LS, and indicators of building professional learning communities (PLC) through LSs, close communication between teachers, high quality instruction by teachers, and test scores of students of the school.

Based on the school survey in elementary and middle schools, almost all schools set up a school‐wide committee, a research theme, and a schedule for LS, and LSs were implemented as part of a school‐wide lesson study from which an action research report is produced. On the other hand, in high schools, almost all the schools implemented LSs, but each LS is independent and implemented specifically for the professional development of the individual teacher who undertakes the research lesson. The authors consider LS as a way to facilitate a PLC in the school. There are correlations between the methods of LS and the indicators of a PLC in elementary and middle schools. However, the effectiveness of LS differs between elementary and middle schools. With respect to the research theme and the organization and discussion of lesson plans, LS methods in middle schools are developed into LS methods in elementary schools. The LS methods may be developed gradually both in elementary and middle schools.

Statistical data of LS in Japanese elementary and secondary schools are presented for the first time, demonstrating the effectiveness of LS.

The purpose of this paper is to explore the fundamental challenges and critical success factors in the development of a Lean Six Sigma (LSS) initiative within a UK higher education institute (HEI). The paper also illustrates examples of the types of projects completed and share some of the key lessons learned as part of the LSS journey.

The authors have initially carried out an extensive literature review on the application of LSS in higher education to understand the existing body of work carried out by other scholars in the field. This is followed by presenting a case study explaining how a HEI in the UK has embarked on its LSS journey as a process excellence methodology to improve the efficiency and effectiveness of core and supporting business processes.

There has been a clear lack of support and commitment from senior management in the sustainability of LSS within the case study organization. There was a general lack of understanding of the benefits of LSS in the higher education context and there is a lack of knowledge on the use of LSS tools for tackling process efficiency and effectiveness problems across the case study organization. Although a number of LSS projects were executed across finance, administrative, and human resources, as well as IT and library services, no projects were carried out for improving academic processes such as teaching effectiveness.

As the case study is limited to one higher education institution (HEI), the findings of the study cannot be broadly generalized. Moreover, the paper does not report the findings of any strategic projects as most projects were carried out at the operational level.

This is possibly one of the first studies reporting project examples of LSS in a HEI. The results of the study can also be used to benchmark with similar studies in other HEIs to understand the impact of certain management practices of LSS.

This paper aims to present an integrative conceptual framework of Lean Six Sigma (LSS) as a project and an organizational change process. To assess the process, the LSS success factors are identified. Their impact on both project outcomes and people is determined.

An in-depth review of success factors resulted in a set of indicators related both to the LSS factors and to the change process. A comparative case analysis of three multinational companies (MNCs) implementing LSS in Thailand is presented. The indicators were used to identify patterns in the cases related to effective implementation through content analysis.

The case analysis showed that an effective combination of a strong LSS project design and a comprehensive change management process achieved positive impacts in business results, employee learning and job satisfaction.

To be successful LSS cannot only focus on a good project design. Champions and key practitioners must also apply best practices in change management.

There are few examples of the integration of LSS project design and the change management process in Asia. Additionally, the case analysis focuses on examples of MNC operations in Thailand. The research supported the importance of integrating change management and project management for success.

International Journal of Lean Six Sigma (IJLSS) has completed a decade. To celebrate the same, this study aims to review the articles published in IJLSS from its inception to the year 2020. The journal’s trends and professional impact over the years are investigated and potential future research directions are proposed.

A bibliometric analysis comprising of citation, co-citation and keyword co-occurrence methods is used on all the articles published in IJLSS till the year 2020. Content analysis is further done to analyse the type of research, type of industry studied and the articles’ target audience.

The journal has improved its reputation, productivity and impact over the years. Currently, studies published in IJLSS have been cited more than 5,000 times, with the most prominent themes being Six Sigma, Lean Six Sigma (LSS) and Lean in manufacturing and services. Researchers from India, the USA and the UK have contributed a significant number of publications. Most of the work published is case-based. There is a need for more empirical or survey-based research having high generalizability. Future studies should also focus on integrating LSS with emerging topics such as sustainability, Industry 4.0 and the like.

The study provides evidence of the impact of IJLSS and highlights the trend in the domain of LSS. It can be of use for the editorial board members to identify potential areas to focus on in the future. Researchers can use it to further their research by working on the research gaps identified.

This paper is the first to trace the progress of IJLSS from its inception till the year 2020.

This study aims to present Lean Six Sigma (LSS) deployment and sustainment strategies for the healthcare sector from a multi-level perspective. The objective is to present LSS implementation insights to enable policymakers, practitioners and academicians to test and develop an LSS framework for healthcare sectors.

The strategies identified are the result of a multi-method research design involving literature review, action research (AR) and Delphi study. Further, the AR portion of the study involved more than 10 years of projects focused on the deployment of LSS in the healthcare sector.

The strategies include a holistic view from the multi-level perspective, considering the Top Management Level, Middle Management Level and Operational Level. The authors ascertained 27 strategies across the three levels of organizational structure for the effective deployment of LSS. Further, the authors present a customized LSS “pocket guide” from the healthcare perspective for quick reference.

The strategies delineated in this study are based on the Indian healthcare section only; thus, further research in additional geographic contexts is needed. Also, further research is necessary to provide additional empirical validation of the effects of the identified strategies on LSS program outcomes and to verify that the strategies operate at the proposed organizational levels. Future research should also focus on identifying the interrelationships between strategies within and across levels, developing a “road map” for LSS implementation in hospitals and designing the LSS curriculum for medical schools and other medical training programs.

Observations of this study can contribute to developing a holistic framework for successful LSS implementation in the healthcare sector for academicians, practitioners and policymakers. This, in turn, ensures an enhanced value proposition, improved quality of life and reduced healthcare operational costs. Thus, it ensures a win-win situation among all the stakeholders of the healthcare sector.

The strategies put forth will enable the LSS researchers, academicians and, more particularly, practitioners to delve deeper into specific enablers and safeguard the LSS deployment from backlash. The research has two significant benefits. Firstly, it enhances the understanding of LSS from the healthcare perspective. Secondly, it provides direction for future studies with specific components for hospitals’ LSS framework, which can be further tested, refined and improved.

The article intended to excavate the Lean Six Sigma (LSS) deployment challenges, Critical Success Factors (CSF), tools and techniques, and managerial implications in an Indian healthcare setting.

The article illustrates a case study established using Action Research (AR) approach. Further, the case study is based on the Define, Measure, Analyze, Improve, Control (DMAIC) phases of LSS. The performance and service quality of the Endodontics department of a dental college attached to a hospital is enhanced and sustained through the LSS strategy.

The processing time of Root Canal treatment is reduced by determining the root causes for delay and implementing sustainable solutions. The structured deployment of the LSS strategy helped the Endodontics department to reduce the processing time from an average of 116 min–84 min. Thus, the process's sigma level is enhanced from 0.06 to 4.17 and assisted in sustaining the results.

The case study's findings are based on the single AR carried out at an Endodontics department of a dental college hospital based on LSS strategies. Even though this study's results cannot be generalized, the deliverables of the case study can be used to develop the LSS roadmap for the dental colleges to enhance the service quality and safety of the patients.

The article provides step-by-step details for implementing LSS in dental college hospitals with critical analysis based on robust statistical tools and techniques. The case study provides evidence of the adoption of LSS in medical college education and provides the confidence to adopt the same through novice users. The study's findings may persuade the policymakers to add LSS in the medical education curriculum to reinforce safety and reduce errors in the healthcare system.

Health care organisations implement lean six sigma (LSS) methodology to achieve improved performance in terms of cost, quality and productivity. However, the way it gets implemented differs between organisations. Hence, this paper deal with a review of case studies describing the implementation of LSS in health care organisations to understand the nuances of implementation and identify future research directions.

The journal articles indexed in the Web of Science and Scopus database were filtered out. In total, 154 articles were evaluated using specific structural dimensions to categorise the literature into various groups, and content analysis was performed to synthesise the same.

This review revealed that the number of articles publishing the application of LSS in health care has been increasing in the last five years. Academic hospitals play a pivotal role to bridge the gap between LSS theory and practice. Despite this fact, certain themes remain unexplored. Not many studies are available that document the application of LSS in non-clinical areas such as pharmacy, internal logistics, maintenance and medical records. Only 20% of articles mentioned the post-intervention data up to three years, thus questioning the sustainability aspect of the achieved improvements.

Various research gaps were identified, which can be used by the researchers to build the body of knowledge in the domain of LSS in health care.

This review provides a diversified view regarding the utility of LSS in the health care scenario. The findings will provide valuable insights for the health care practitioners regarding tools, techniques, drivers and performance measures.

To the best of the authors’ knowledge, this is the first study to review only the case studies that describe the implementation of LSS in the health care sector.