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1 – 10 of over 6000Ricardo Banuelas, Charles Tennant, Ian Tuersley and Shao Tang
The literature suggests that a key ingredient for the successful six sigma implementation is project prioritisation and selection. The purpose of this paper is to identify what…
Abstract
Purpose
The literature suggests that a key ingredient for the successful six sigma implementation is project prioritisation and selection. The purpose of this paper is to identify what criteria are considered for selecting six sigma projects and how six sigma projects are selected in organisations in the UK.
Design/methodology/approach
Using a survey as a method of investigation, respondents were asked what criteria are considered to select projects and how potential projects are identified, prioritised, selected and evaluated.
Findings
The results of the survey indicate that UK organisations tend to select projects based on criteria such as customer satisfaction, financial benefits, top management commitment and those projects integrated with the company's strategy. Several tools and techniques such as cost benefit analysis, cause and effect matrix, brainstorming, Pareto analysis are employed to identify and prioritise projects.
Research limitations/implications
This paper is limited to the selection of six sigma in the UK. Further, empirical studies using larger sample sizes and greater geographical diversity may be helpful in validating the results of this study.
Practical implications
The identification of the most commonly used criteria to select six sigma projects can aid practitioners to select projects based on multiple criteria and using tools and techniques identified in this survey.
Originality/value
The provision of empirical data on the criteria used to select six sigma projects and how six sigma projects are selected.
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The purpose of this paper is to examine the relationship between four organizational cultural types defined by the Competing Values Framework and three Lean Six Sigma…
Abstract
Purpose
The purpose of this paper is to examine the relationship between four organizational cultural types defined by the Competing Values Framework and three Lean Six Sigma implementation components – management involvement, use of Lean Six Sigma methods and Lean Six Sigma infrastructure.
Design/methodology/approach
The study involved surveying 446 human resource and quality managers from 223 hospitals located in Maine, New Hampshire, Vermont, Massachusetts and Rhode Island using the Organizational Culture Assessment Instrument.
Findings
In total, 104 completed responses were received and analyzed using multivariate analysis of variance. Follow-up analysis of variances showed management support was significant, F(3, 100)=4.89, p < 0.01, η2=1.28; infrastructure was not significant, F(3, 100)=1.55, p=0.21, η2=0.05; and using Lean Six Sigma methods was also not significant, F(3, 100)=1.34, p=0.26, η2=0.04. Post hoc analysis identified group and development cultures having significant interactions with management support.
Practical implications
The relationship between organizational culture and Lean Six Sigma in hospitals provides information on how specific cultural characteristics impact the Lean Six Sigma initiative key components. This information assists hospital staff who are considering implementing quality initiatives by providing an understanding of what cultural values correspond to effective Lean Six Sigma implementation.
Originality/value
Managers understanding the quality initiative cultural underpinnings, are attentive to the culture-shared values and norm’s influence can utilize strategies to better implement Lean Six Sigma.
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Souraj Salah, Abdur Rahim and Juan A. Carretero
Lean and Six Sigma are the two most important continuous improvement (CI) methodologies for achieving operational and service excellence in any organization. The purpose of this…
Abstract
Purpose
Lean and Six Sigma are the two most important continuous improvement (CI) methodologies for achieving operational and service excellence in any organization. The purpose of this paper is to explain how lean compares to the Six Sigma and outline the benefits for integrating them. Also, this paper discusses the existing models that describe how Six Sigma and lean fit together. A new detailed description for integrating Six Sigma and lean is developed to provide an improved approach for CI.
Design/methodology/approach
The following research included proposals and discussion, which were mainly based on the authors' own findings and experience, in addition to a literature‐based review of some of the most common and traditional lean and Six Sigma models.
Findings
The paper proposes a new lean Six Sigma (LSS) approach and provides a detailed description of its phases. The paper also presents the views on the integration benefits as well as on how Six Sigma compares to lean. Six Sigma and lean are related and share common grounds in terms of striving to achieve customer satisfaction. Their integration is concluded to be possible and beneficial.
Research limitations/implications
The paper discusses the existing models that describe how Six Sigma and lean fit together. Finally, a new detailed description for integrating Six Sigma and lean is developed to provide an improved approach for CI.
Originality/value
The paper extends previous works on LSS and proposes a novel approach to LSS. The proposed structure is built upon the existing define, measure, analyze, improve and control structure which is well renowned in the literature.
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J. Muraliraj, S. Kuppusamy, Suhaiza Zailani and C. Santha
The purpose of this paper is to explore how Lean and Six Sigma’s distinctive practices relate to potential absorptive capacity (PACAP) and realized absorptive capacity (RACAP)…
Abstract
Purpose
The purpose of this paper is to explore how Lean and Six Sigma’s distinctive practices relate to potential absorptive capacity (PACAP) and realized absorptive capacity (RACAP). The paper seeks to understand which of the practices in Lean Six Sigma are needed to manage absorptive capacity systematically.
Design/methodology/approach
Partial least square based structural equation modeling (PLS-SEM) was used to test the theoretical model drawing on a sample of 125 manufacturing organizations in Malaysia. In addition to examining direct effects, the study also examines indirect effects using bootstrapping method to identify possible mediation effects proposed in the model.
Findings
The results explain that Lean’s social practices (LSP), Six Sigma’s roles structure (RS) and structured improvement procedure (SIP) positively influence potential absorptive capacity (PACAP). Meanwhile LSP, RS and focus on metrics (FOM) positively influence realized absorptive capacity (RACAP). SIP was found to influence RACAP through PACAP. The analysis reveals the combination of Lean Six Sigma practices that are required in managing PACAP and RACAP differentially.
Research limitations/implications
The study is only confined to manufacturing industries in Peninsular Malaysia. Data collected were cross-sectional in nature. The application of Lean Six Sigma and how it influences absorptive capacity may get sturdier across time, and this may change the effect toward sustainability of firm’s competitive advantage. A longitudinal study may be useful in that context. The study also makes specific recommendations for future research.
Practical implications
The results of this study can be used by Lean Six Sigma practitioners to prioritize the implementation of Lean Six Sigma practices to develop absorptive capacity of the organization through PACAP and RACAP, which needs to be managed differentially as they exert differential outcomes. This would enable organizations to tactfully navigate and balance between PACAP and RACAP in accordance to business strategies and market conditions.
Originality/value
Absorptive capacity in Lean and Six Sigma context has largely been studied as a unidimensional construct or used as a grounding theoretical support. Therefore, understanding the multidimensionality through PACAP and RACAP provide insights on how to enhance and maneuver absorptive capacity through Lean Six Sigma systematically. The findings may pave the way for future research in enhancing the current knowledge threshold in Lean Six Sigma.
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The purpose of this paper is to examine how quality award‐winning organisations have used lean Six Sigma to assist their efforts to improve their business excellence scores.
Abstract
Purpose
The purpose of this paper is to examine how quality award‐winning organisations have used lean Six Sigma to assist their efforts to improve their business excellence scores.
Design/methodology/approach
This paper uses a case study approach and uses data collected by interviews and at public workshops. In addition, publicly available materials such as award applications were also examined. Two organisations were studied, one in New Zealand and one in the USA.
Findings
The results show that lean Six Sigma can contribute strongly to each category of the business criteria for performance excellence. There was no evidence of compatibility problems between the lean and Six Sigma components.
Research limitations/implications
This paper is based on two case studies of award‐winning companies that had adopted lean Six Sigma after a long journey using a wide range of improvement approaches. More work is needed to examine the use of lean Six Sigma in the early stages of the business excellence journey.
Practical implications
Some literature on lean Six Sigma suggests that the tools associated with each component are used in a sequential fashion or dominant/subordinate roles. This research showed that the choice of lean Six Sigma tools by project teams was decided more by the complexity of the project rather than following some particular sequence.
Originality/value
Business excellence awards are common in many parts of the world. Organisations are continually seeking ways to improve their performance and to advance up the scoring scale. This paper shows how two award‐winning companies have harnessed lean Six Sigma to improve their operations and improve their scores.
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Ali Ahmed, John Page and John Olsen
In recent times, the idea of taking advantage of the benefits of simulation techniques and Six Sigma discipline altogether has led various organizations towards implementation of…
Abstract
Purpose
In recent times, the idea of taking advantage of the benefits of simulation techniques and Six Sigma discipline altogether has led various organizations towards implementation of simulation tools within Six Sigma methodology. The purpose of this study is to provide a more comprehensive literature review on the topic exploring how this amalgamation could work both in theory and practice. This precisely entailed finding dependable studies that shows how Six Sigma (DMAIC) Methodology can be enhanced by the three prevalent simulation techniques; Agent-Based (AB), Discrete-Events (DE), System Dynamics (SD).
Design/methodology/approach
A systematic literature review was considered more fitting in research because it involves rigorous and well-defined approach compared to other forms of literature review. In this case, the literature was comprehensive, well-encompassing and involved finding Six Sigma and Simulations literatures from reputable scholarly databases. The outcome of these reviews was the identification of a set of key finding compiled and classified by topics. The study follows an inductive approach and utilises a meta-synthesis review technique.
Findings
As numerous studies assert, simulation techniques including AB, DE and SD are applicable tools in almost every stage of DMAIC, especially the Analyse, Improve and Control phases, because of their capability to test and identify potential bottlenecks and improvement areas. Findings show that the simulation tools such as CLDs, Group Model Building, Dynamic Balance Scorecards and Cost of poor quality all have the potential to add value to a Six Sigma methodology.
Originality/value
The findings of this study highlight the importance of further inquiry in this area of study. The finding of this study suggests that although the study on the integration of Six Sigma and simulations is increasing, empirical evidence on its effectiveness is still limited. Therefore, this study suggests more roadmaps and investigations aimed at merging Six Sigma methodology and various simulation technique. Moreover, studies that centre on hybrid or multi-method simulations within Six Sigma are also urgently necessitated.
Robert Holtz and Paul Campbell
If readers have picked up any of a number of business periodicals within the past five years, they have probably heardof Six Sigma. They have read about it or heard someone…
Abstract
If readers have picked up any of a number of business periodicals within the past five years, they have probably heard of Six Sigma. They have read about it or heard someone talking about the great successes that resulted from applying Six Sigma. The intent of this paper is not to teach the reader all there is to know about Six Sigma. Instead, it aims to provide a brief overview of Six Sigma (for anyone not familiar with it), explain how Ford Motor Company has approached its implementation and how it has been applied in facility management and maintenance activities.
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Nashmi Chugani, Vikas Kumar, Jose Arturo Garza-Reyes, Luis Rocha-Lona and Arvind Upadhyay
The academic literature and research lines exploring the effect of quality improvement methods on environmental performance still remain in early stages. The purpose of this paper…
Abstract
Purpose
The academic literature and research lines exploring the effect of quality improvement methods on environmental performance still remain in early stages. The purpose of this paper is therefore to investigate, through a systematic review of the existing academic literature, the environmental (green) impact of using quality and operations improvement methods such as Lean, Six Sigma and Lean Six Sigma. This includes the impact on energy saving and the usage of natural resources.
Design/methodology/approach
This study follows a systematic literature review approach through which it analyses research papers published in top 16 operations and quality management journals. No specific time frame was established, but a set of keywords were used to short-list the articles. A sample of 70 articles was finally short-listed and analysed to provide a discussion on environmental concerns related to Lean, Six Sigma and Lean Six Sigma.
Findings
The comprehensive review of short-listed articles indicates that both Lean and Six Sigma can be considered effective methods to support the conservation of resources, combat global warming and saving energy. Various scholars provide evidence of this, and as such, organisations should not only consider these methods to manage quality and improve operational performance but also meet environmental regulations. A set of research questions that demands further investigation has also been proposed based on the findings of this research.
Research limitations/implications
This study is limited to a sample of 70 articles collected from top 16 operations and quality management journals. The search of journals is also limited to a set of key words (“Lean”, “Green”, “Six Sigma”, “environment”, “sustainable” and “sustainability”) used to short-list the sample size.
Practical implications
The study shows that organisations can consider the adoption of Lean, Six Sigma and Lean Six Sigma to meet environmental regulations, save costs and also meet quality management standards. This will contribute in helping organisations to formulate more effective and inclusive strategies which do not only consider the quality and operational dimensions but also the environmental dimension.
Originality/value
Literature exploring the environmental/green impact of quality management methods commonly used in industry is limited. There is also a lack of studies aiming to investigate the green impact of Lean and Six Sigma in top operations and quality management journals. The study focusing on investigating the green impact of Lean, Six Sigma and Lean Six Sigma methods altogether is also a research first of its kind.
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The purpose of this paper is to assess Lean Six Sigma to identify important advances over the last ten to 15 years and discuss emerging trends that suggest how the methodology…
Abstract
Purpose
The purpose of this paper is to assess Lean Six Sigma to identify important advances over the last ten to 15 years and discuss emerging trends that suggest how the methodology needs to evolve. The goal is to aid those who want to use the method to improve performance as well as assist those developing improvement methodologies.
Design/methodology/approach
The use and development of Lean Six Sigma is reviewed including the origins of the method, the what, why and benefits of the method, how the approach is different, the integration of Lean and Six Sigma, implementation mistakes made, lessons learned and developments needed in the future.
Findings
It is found that organizations have many different improvement needs that require the objectives and methods contained in the lean and Six Sigma methodologies. It is also found that deployment and sustaining improvements are major issues that can be overcome by building a sustaining infrastructure and making improvement a business process. Critical issues include using Lean Six Sigma to generate cash in difficult economic times, development of data‐based process management systems and the use of working on improvement as a leadership development tool.
Practical implications
These findings suggest that improvement is most effective when approached in an holistic manner addressing improvement in all parts of the organization using a holistic improvement methodology such as Lean Six Sigma. Improvement must address the flow of information and materials thorough processes as well as the enhancement of value‐adding process steps that create the product for the customer. This leads naturally to making improvement a business process that is planned for, operated and reviewed as any other important business process is.
Originality/value
The roadmaps, guiding principles, and deployment pitfalls identified will be of value to those initiating and operating improvement processes in their organizations enabling them to rapidly create useful and sustainable improvements. The discussion of needed enhancements will be of value to those who are working to improve the effectiveness of the approach.
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Catherine Hagemeyer, John K. Gershenson and Dana M. Johnson
The complexity of problem solving requires use of quality tools to assist in the organization and analysis of information and data surrounding the concern. A proposed…
Abstract
Purpose
The complexity of problem solving requires use of quality tools to assist in the organization and analysis of information and data surrounding the concern. A proposed classification scheme for problem‐solving tools allows the user to identify the correct tool at the proper time in the problem‐solving process. This may assist the problem solver to efficiently and effectively work toward problem solution. The classification scheme, in the form of a matrix, identifies, organizes, and defines tools of the six sigma problem‐solving process as taught and implemented at a large manufacturing company.
Design/methodology/approach
Development of a problem‐solving matrix to enable more efficient and effective use of tools applied to a six sigma project in a large manufacturing company.
Findings
The application of the methodology to a case study in a large manufacturing company related to an Air Conditioning (A/C) No Fill concern. The exercise of applying the six sigma tools matrix to this project would have been improved if conducted at the beginning of the six sigma Belt training and start of the A/C No Fill project.
Research limitations/implications
Since, the matrix was not fully completed at the start of either the training or the project, the team was unable to begin using the developed matrix until midway through both. This posed some limitations in judging the efficiency and effectiveness of the matrix. Although it is believed that both were improved, the maximum benefit may not have been achieved because of timing in application. Future application of the matrix should commence at the beginning of the project to enable maximum results for more efficient and effective problem solving and identification of proposed solution.
Practical implications
Manufacturing and service organizations can improve their problem‐solving methodology by using the approach outlined in this paper. It will enable companies to better “match” the tools necessary to solve real‐life business problems.
Originality/value
Although this approach uses existing quality management and problem‐solving tools, its novel application in the development of a more thorough approach to problem solving, aided by the classification of problem‐solving tools may enable companies to more successfully and expeditiously reach proposed solutions.
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