Study on Lean Six Sigma frameworks: a critical literature review

2017 ◽  
Vol 8 (3) ◽  
pp. 275-334 ◽  
Author(s):  
Shruti J. Raval ◽  
Ravi Kant
Keyword(s):  
Literature Review ◽  
Six Sigma ◽  
Design Method ◽  
Lean Six Sigma ◽  
Content Type ◽  
Online Databases ◽  
Major Discrepancy ◽  
Critical Literature ◽  
Made In

Purpose The literature in the field of Lean Six Sigma (LSS) is escalating with frameworks, but, till date, no effort has been made in existing literature to critically reviewing LSS frameworks. The aim of this paper is to investigate the literature about Lean, Six Sigma and LSS frameworks and critically reviewing the existing literature over numerous parameters. Design/methodology/approach This study focuses on a literature review of Lean, Six Sigma and LSS frameworks. The time span of this analysis is 30 years. The analysis is restricted to searching online databases such as Elsevier Science direct, Taylor and Francis, Emerald, Springer link, Wiley Inter-Science and Inder-Science. A total number of 58 frameworks have been used as sample size for this study. The study focuses on reviewing these 58 frameworks based on measures such as the novelty of frameworks, source of frameworks, framework verification, approach of verification and identification of vital elements/tools/constructs of frameworks and lastly comparative analysis of all these 58 frameworks Findings The analysis has identified major discrepancy such as laxity of researcher toward utilizing existing frameworks, lack of participation of practitioners and consultants in the development of LSS frameworks, and the elements/constructs used in structuring the frameworks are highly incoherent. Higher proportions of frameworks are verified through various modes of verification such as survey, case study, simulation, which encourages other researchers for applicability of the frameworks. Case study is found most popular research design method for verification of frameworks. Various frameworks are highly abstract or superficial. Some of the frameworks do not show how each construct/element are related to implementation in the organization. Out of 58 frameworks, the only single framework is highly comprehensive. A coherent framework for LSS is still lacking. Research limitations/implications This analysis is limited to peer review articles from Elsevier Science direct, Taylor and Francis, Emerald, Springer link, Wiley Inter-Science and Inder-Science databases and contains the search keywords in title only. Originality/value This study is first of its kind attempt, making an effort to the knowledge of the authors to critically review Lean, Six Sigma and LSS frameworks. This analysis will assist to recognize the LSS filed trends and framework applicability.

How to use lean Six Sigma methodology to improve service process in higher education

2019 ◽  
Vol 10 (4) ◽  
pp. 883-908
Author(s):  
Na Li ◽  
Chad Matthew Laux ◽  
Jiju Antony
Keyword(s):  
Higher Education ◽  
Literature Review ◽  
Six Sigma ◽  
Lean Six Sigma ◽  
Service Process ◽  
Bottom Line ◽  
Content Type ◽  
Root Cause ◽  
Lessons Learnt

Purpose The purpose of this paper is to use a practical case study approach to demonstrate the power to use lean Six Sigma (LSS) to improve service process in a higher education institution (HEI). The paper also illustrated the barriers and challenges met and lessons learnt for the LSS adoption in this HEI. Design/methodology/approach Prior to the study, extensive literature review was conducted to understand various aspects of LSS in HE industry. The authors use a single descriptive case study as methodology to explain how DMAIC was applied within a HEI environment. Findings In this LSS case study, the team found HEI service process contains a large human behavior component, which dramatically increases the unpredictability of the entire service delivery process and increases the complexity of the process and the ability of the improvement team to identify the root cause. This case study demonstrates the numerous challenges will occur in working with the intangible factors that are both hard to recognize, quantify and rarely tracked by organization. Practical implications During the research, the pre-award service process was studied, data were recorded and various statistical tool and techniques were used to discover and resolve the root cause. The lessons learnt of the LSS adoption in this service process in HEI and the problems encountered were all recorded in this study, which will be helpful for future research in HEI industry. Originality/value From the literature review, LSS has been widely adopted in manufacturing industry, increased adoption in service, but there has been limited academic research about the implementation in nonprofit, service sectors, particular to higher education industry. The major benefit of implementation LSS in both manufacturing and service is considerable improvement to the bottom line. However, in this HEI case study, it has opened up the direction to implement LSS to better serve your customer as ultimate mission instead of financial gains.

Academic leadership and Lean Six Sigma

2016 ◽  
Vol 33 (7) ◽  
pp. 1002-1018 ◽  
Author(s):  
Stephen Anthony ◽  
Jiju Antony
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Six Sigma ◽  
Large Body ◽  
Lean Six Sigma ◽  
Academic Leadership ◽  
Total Quality ◽  
Research Papers ◽  
Content Type

Purpose – The purpose of this paper is to demonstrate the ability to researchers of using design of experiments (DoE) as a structured and systematic approach to performing systematic literature reviews. The authors demonstrate a simple case study illustrating the application of DoE in executing a systematic literature review on two popular topics in higher education: academic leadership and Lean Six Sigma. Design/methodology/approach – The methodology involves the systematic literature review of linking academic leadership with terms such as Lean, Six Sigma, Total Quality Management, Maturity Model and Continuous Improvement. The main tool used to structure the systematic literature review is a Taguchi Orthogonal Array design, specifically an L16 grid and the method is verified by conducting another review, replacing the term academic leadership with simply leadership. Findings – The approach identified at first no research papers linking the terms; however, when academic leadership was replaced with university, 19 research papers where discovered. The verification exercise, linking just leadership with the other search string generated over 1,000 results – demonstrating that the tool can find large volumes of articles if they exist, the search was completed for a ten year time frame – 2004 to 2014. Research limitations/implications – The case study focussed on a field which is known to have little current research and the verification exercise deliberately targeted a known large body of research. The authors will continue to use the approach and refine the technique over time. Practical implications – This approach would help any researcher despite of their discipline to identify opportunities and gaps in the current literature. Originality/value – The paper shows how DoE can be used in an academic research-based process. No other literature review approach currently exists which uses Taguchi approach to DoE to filter the search criteria.

A systematic literature review on Sustainable Lean Six Sigma

2019 ◽  
Vol 11 (3) ◽  
pp. 429-461 ◽  
Author(s):  
Pranay Sureshbhai Parmar ◽  
Tushar N. Desai
Keyword(s):  
Literature Review ◽  
Six Sigma ◽  
Cost Reduction ◽  
Lean Six Sigma ◽  
Current Status ◽  
Defect Reduction ◽  
Content Type ◽  
Analysis Techniques ◽  
Study Implementation

Purpose The purpose of this study is to determine the current status of Sustainable Lean Six Sigma (SLSS) practices execution in the industries by identifying the research gaps and also methodologies that are applied by different researchers and practitioners. Design/methodology/approach To find the current status of SLSS practices all over world, the literature review of the articles available through SCOPUS data base is given in different categories such as a country-wise and year-wise publication of the articles, journal-wise publication of articles, case study implementation focus in industry and data analysis techniques used by the researchers. Findings The different methodologies applied by the researchers and practitioners have been explained and the gaps for further research are identified. The extensive review of articles of last 18 years revealed that there are various opportunities such as quantitative study, framework modeling on the SLSS, and implementation of developed models in different industries, etc. which are required to be explored. Originality/value In the present study, a review of 129 articles for the time span of January 2000 to February 2018 is considered. The SCOPUS database was used for selecting the articles for review. A total of 129 articles were considered for the literature review, and the case study implementation in different industries with the focused areas such as cost reduction, defect reduction, economic, environmental and social aspects was explained.

Business survival and market performance through Lean Six Sigma in the chemical manufacturing industry

2019 ◽  
Vol 10 (2) ◽  
pp. 566-600 ◽  
Author(s):  
Peter Muganyi ◽  
Ignatio Madanhire ◽  
Charles Mbohwa
Keyword(s):  
Continuous Improvement ◽  
Six Sigma ◽  
Market Performance ◽  
Lean Six Sigma ◽  
Chemical Product ◽  
Business Survival ◽  
Content Type ◽  
Chemical Manufacturing ◽  
Product Manufacturing

Purpose The research paper aims to unveil the practical use of Lean Six Sigma and its effectiveness as a business survival strategic tool by a chemical product realization concern, as well as to establish the market and business performance impacts on the manufacturing entity. Design/methodology/approach A case study approach was pursued with a multi-national chemical manufacturing entity in South Africa. A comprehensive literature research was undertaken to establish the contemporary tools used for implementing Lean Six Sigma, and the classification and flow of tools and steps undertaken to ensure the successful and effective application of Lean Six Sigma in a manufacturing organization and the benefits derived. The critical success factors and reasons of ineffective use of tools are reviewed. To ensure that a comprehensive research was conducted which is relevant to the body of knowledge in engineering, recent articles on the application of Lean Six Sigma were selected and reviewed during the progress of the study to add impetus to the relevance of the findings. Findings The research findings were mainly based on the inferences obtained from a chemical product manufacturing concern in South Africa, to distinguish the efficacy and relevance of Lean Six Sigma as strategic business survival tool and imputing strategic resonance to corporate strategy. Research limitations/implications This research was limited to distinguishing Lean Six Sigma as a business survival strategic tool and an ultimate enhancer of market performance for a chemical product manufacturing entity. The implementation and evaluation of the Lean Six Sigma methodology as a business survival strategic and market performance enhancement option for the case study organization was entailed as the corollary of deductive resemblance to similar entities. Practical implications This study enables continuous improvement practitioners to evaluate the Lean and Six Sigma practices. The advantages posed by the simultaneous and optimized application of the two approaches versus individual application were assessed and verified to produce enhanced continuous improvement. This poses further challenges to scholars and academics to pursue further researches on the practicality of applying Lean Six Sigma as a strategic option. Originality/value The paper prompts the efficacy of well publicized methodologies and evaluates their implementation for strategic performance for manufacturing organizations. The practical application, constraints and resultant effects of deploying Lean Six Sigma were reviewed to give impetus to the methodology.

Lean Six Sigma strategy in telecom manufacturing

2014 ◽  
Vol 114 (6) ◽  
pp. 904-921 ◽  
Author(s):  
Roy Andersson ◽  
Per Hilletofth ◽  
Peter Manfredsson ◽  
Olli-Pekka Hilmola
Keyword(s):  
Supply Chain ◽  
Six Sigma ◽  
Single Case ◽  
Lean Six Sigma ◽  
Content Type ◽  
Strategic Emphasis ◽  
Company Culture ◽  
Difficult Times ◽  
Practical Implications

Purpose – The purpose of this paper is to elaborate, how the use of a joint-use strategy of Lean and Six Sigma can improve flexibility, robustness, and agility. Telecom manufacturing has been under tremendous change after dot.com bubble burst in the early 2000, and new competition has originated from Asia. Being successful requires now more than before, and joint-use of strategies is one option to survive. Design/methodology/approach – A single case study from a Swedish company operating in the telecom manufacturing was conducted. In particular, a Six Sigma project was followed and analyzed during 2002. However, the outcome of the Six Sigma project has been studied in longitudinal manner until 2014. Findings – The Lean Six Sigma strategy ensures flexible, robust, and efficient processes. However, to make them more agile in order to sustain in today's highly competitive environment, something more is required. This could include staff training, strengthening company culture and collaborating with key partners in the supply chain. Research limitations/implications – This study is limited to large company that usually has a lot of resources and choices where to put the strategic emphasis as well as has level of control of the supply chain operations. The situation could be very different in small and medium-sized companies and thus it may be more difficult to realize the Lean Six Sigma strategy in such environment. On the other hand, the processes in these companies are often less complex. Practical implications – This research provides guidance on how to manage the Lean Six Sigma strategy in order to ensure more flexible, robust, and efficient processes as well as how to perform a Six Sigma project in Lean environment, in a proper manner. Originality/value – This research provides guidance to companies regarding the applicability and properties of the Lean Six Sigma strategy. The paper will also serve as a basis for other companies and industries, on how to survive in difficult times.

Improving logistics supplier selection process using lean six sigma – an action research case study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Huay Ling Tay ◽  
Hui Sen Aw
Keyword(s):  
Health Care ◽  
Six Sigma ◽  
Supplier Selection ◽  
Selection Process ◽  
Lean Six Sigma ◽  
Content Type ◽  
Logistics Services ◽  
Health Care Company ◽  
Care Company

Purpose Outsourcing logistical activities have become a widely used approach for firms to avoid high fixed costs and heavy investment requirements and to achieve competitive advantages. Lean six sigma (LSS) has been accepted globally across sectors as a management strategy for achieving process excellence. The purpose of this paper is to feature the application of LSS for improving the supplier selection process (SSP) of outsourced logistics services in a multinational health-care company. Design/methodology/approach This study is based on an action research case study conducted on the SSP of the freight and distribution department in a multinational health-care company. This paper reports on the application of the LSS define-measure-analyze-improve-control (DMAIC) approach for reducing supplier selection lead time. Findings The study features a real-world case study of the LSS DMAIC application to improve the supplier selection process of a large health-care company. The key issues that were identified are lack of information visibility, top-down changes and unclear communication lines. To counteract these three root causes, the lean six sigma techniques that are implemented are the 5S, stakeholder analysis and standard operating procedure. Research limitations/implications This research provided empirical evidence of how practical challenges in SSP can be managed with the use of LSS. It further proposed plausible solutions for reducing and sustaining improved outcomes. As the study is limited to one case, the validity of the results can be improved by including more organisations and more case studies from other similar organisations. Originality/value Research in supplier selection processes rarely links continuous improvement ideology such as LSS to support strategic selection and procurement of logistics services. This paper could serve as a resource for both practitioners to derive useful implications and to academicians as it contributes to the LSS body of knowledge for further theory testing.

Impact of lean six sigma at pharmacy unit on hospital profitability before and during Covid-19 pandemic

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
A. Heri Iswanto
Keyword(s):  
Six Sigma ◽  
Inpatient Care ◽  
Design Method ◽  
Lean Six Sigma ◽  
Term Care ◽  
New Normal ◽  
Content Type ◽  
Unit Level ◽  
The Impact

Purpose The purpose of this paper is to compare the impact of lean six sigma (LSS) implementation carried out in a pharmaceutical unit on the profitability of outpatient and inpatient care before and during the Covid-19 pandemic. Design/method/approach The data were analyzed descriptively to see the development patterns in four periods: before implementation, during the implementation before the pandemic, during the pandemic and during the enforcement of new normal, in general, and by the length of stay (LOS). Findings The inventory purchase in the pharmaceutical unit dramatically decreased after implementation even during the pandemic and new normal wherein the pre-pandemic it decreased by 27%, during the pandemic 29% and in the new normal 37% compared to pre-LSS. The hospital deficit decreased after implementation before the pandemic by 26% and during the pandemic by 10% from the pre-LSS time. However, during the new normal, the deficit increased by 29%, indicating a diminished effect of LSS on the hospital profits. Research limitations/implications This research raised the possible implication that the implementation of LSS needed to be carried out in the entire hospital to have a large effect, especially on the inpatient care and long-term care installations. Originality/value This research provided empirical evidence regarding the effect of the Covid-19 pandemic on the ability of LSS at the unit level to provide efficiency at the unit level and the entire hospital at various levels of LOS.

Lean Six Sigma in higher education institutes: an Irish case study

2019 ◽  
Vol 10 (4) ◽  
pp. 948-974 ◽  
Author(s):  
Seamus J. O’Reilly ◽  
Joe Healy ◽  
Tom Murphy ◽  
Rónán Ó’Dubhghaill
Keyword(s):  
Higher Education ◽  
Six Sigma ◽  
Single Case ◽  
Lean Six Sigma ◽  
Research Approach ◽  
Content Type ◽  
Training Programmes ◽  
The Impact

Purpose This paper aims to contribute to a developing literature on continuous improvement (CI), enabled by Lean Six Sigma (LSS), in higher education institutions (HEIs). It reports on the key learning points arising from the initial steps taken by an Irish university on its CI journey. Design/methodology/approach A case study strategy was adopted following a participatory research approach. This approach supports reflexivity and also provides access to all relevant documentation and staff within the case university. Thematic analysis was supported by data reduction and display techniques. Findings The introduction of a LSS approach rather than a reliance on lean alone introduced a structured methodology (DMAIC) that supported simplification of a number of administrative processes. A number of specific improvements were achieved including: Cycle time and cost reduction; customer or employee satisfaction; and rework and error reduction. The findings support the importance of the Readiness Factors as identified by Antony (2014), with particular insight into the role of senior and middle management, the impact of training and deployment of expertise. Research limitations/implications This paper is based on an ongoing, longitudinal, empirical study of a single case study in Ireland. Originality/value This paper tracks the development of CI in a HEI in a longitudinal manner and adds to the emerging the literature in this area. The paper evaluates the role of management at various levels, analyses the use of LSS tools and techniques and evaluated the role of training and capacity building. Implications for Management are shared including: design and role of training programmes, role of champions at various organisational levels, including key functional areas and sustaining momentum.

Lean Six Sigma in policing services

2018 ◽  
Vol 67 (5) ◽  
pp. 935-940 ◽  
Author(s):  
Jiju Antony ◽  
Bryan Rodgers ◽  
Inness Coull ◽  
Vijaya Sunder M.
Keyword(s):  
Six Sigma ◽  
Design Methodology ◽  
Single Case ◽  
Lean Six Sigma ◽  
Single Case Study ◽  
Content Type ◽  
The Public ◽  
Study Approach ◽  
Learning Points

Purpose This paper is based on a single case study carried out as part of a change programme but is used as a reflective tool to draw on some of the wider organisational learning which can be considered when implementing, reviewing or re-energise a Lean Six Sigma (LSS) Programme. The paper aims to discuss this issue. Design/methodology/approach A case study approach has been used and referenced throughout the paper with references to literature to support the wider learning points drawn which are then applied to any continuous improvement (CI) programmes. Findings The paper presents a range of learning points which are drawn from a successful deployment of LSS within a change project carried out as part of an overall programme in Scottish policing services. Research limitations/implications The points are drawn from a single case study which was deployed within a wider change programme and is supported by wider literature but is used as a vehicle for informing strategic considerations within an organisation. Originality/value This case study is drawn from policing services in the public sector which alone is an area that has not been significantly studied. It is used to explore wider implications in terms of strategic alignment, organisational performance and project management and presents the argument that the design of a CI programme is much wider than the implementation of LSS itself.

scholarly journals Logistics services and Lean Six Sigma implementation: a case study

2016 ◽  
Vol 7 (3) ◽  
pp. 324-342 ◽  
Author(s):  
Leopoldo Gutierrez-Gutierrez ◽  
Sander de Leeuw ◽  
Ruud Dubbers
Keyword(s):  
Six Sigma ◽  
Process Management ◽  
Relevant Information ◽  
Lean Six Sigma ◽  
Consumer Electronics ◽  
Value Stream Mapping ◽  
Content Type ◽  
Control Approach ◽  
Logistics Services

Purpose This paper aims to analyze the application of Lean Six Sigma (LSS) framework for supporting continuous improvement (CI) in logistics services. Both the lean philosophy and the Six Sigma methodology have become two of the most important initiatives for CI in organizations. The combination of both alternatives – LSS – brings significant benefits for companies applying this method, and its influence in logistics services can be relevant. Design/methodology/approach A case study on the logistics services of a large consumer electronics company is performed. In this sector, high quality in logistics services is crucial. Using within-case and cross-case analyses, the paper discusses the implementation of LSS in two internal logistics processes. Findings The paper identifies important implementation aspects when applying LSS to logistics services, such as CI structure, strategic analysis, cross-functional teams and process management. Furthermore, the paper discusses the potential in logistics services of the DMAIC (define, measure, analyze, improve and control) approach and tools such as value stream mapping, SIPOC (supplier, input, process, output, and customer) and process mapping. Practical implications The paper analyzes two logistics processes where LSS has been applied – a payment process and a request-to-ship process. The analysis of both processes offers relevant information about organizational implementation in a logistics services environment about process improvement and about the use of LSS tools. Originality/value First, this paper addresses the gap in literature about LSS and logistics’ activities. Furthermore, the case company, with more than 9,000 employees and distributing its products to more than 100 countries, constitutes a valuable source of information to obtain insights into the implications of implementing LSS in logistics services.

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