Six Sigma with C-K theory for innovations in operational excellence: a case study

2019 ◽  
Vol 26 (7) ◽  
pp. 2105-2121 ◽  
Author(s):  
Michael Sony ◽  
Subhash Naik
Keyword(s):  
Six Sigma ◽  
Business Strategy ◽  
Cost Effective ◽  
Integration Model ◽  
Content Type ◽  
K Theory ◽  
Design Reasoning ◽  
Operational Excellence ◽  
Creativity And Innovation

Purpose Six Sigma is a well-established powerful business strategy for achieving operational excellence (OPEX). However, previous studies have suggested that the Six Sigma may negatively impact organizational creativity and innovation. The C-K theory is one of the most widely used technique for design reasoning which promotes the creativity and innovation. The purpose of this paper is to integrate the Six Sigma methodology and C-K theory for enhancing innovative capacity of Six Sigma for achieving OPEX. Design/methodology/approach The paper proposes an integration methodology of C-K theory and Six Sigma using the extant literature. Also, a case study is conducted based on the proposed integration model. Findings The paper suggests a step-by-step integration methodology for integrating Six Sigma with C-K theory for both (DMAIC and DMADV). The methodology when applied to a live case in mining logistics the results are very encouraging. The solution was cost effective and also technically superior compared to previous solutions. Practical implications The paper proposes a step-by-step methodology for the integration of Six Sigma with C-K tools. The methodology is practically applied in a live case. Organizations can use findings from this paper to implement an integration model of Six Sigma with C-K theory. Originality/value This is the first paper that proposes an integration methodology of Six Sigma with C-K theory to enhance the innovation capability to achieve the OPEX.

Measure and Analyze the Problems of Concrete Mixture Production via Six Sigma DMAIC Tools: Central Concrete Mix Plant as a Case Study

2012 ◽  
Vol 622-623 ◽  
pp. 472-477
Author(s):  
Ali A. Karakhan ◽  
Angham E. Alsaffar
Keyword(s):  
Six Sigma ◽  
Business Strategy ◽  
Concrete Mixture ◽  
Statistical Tools ◽  
Sigma Level ◽  
Defect Rate ◽  
Concrete Production ◽  
Concrete Mix ◽  
Six Sigma Methodology

The aims of this study are to measure the defect rate and analyze the problems of production of ready concrete mixture plant by using Six Sigma methodology which is a business strategy for operations improvement depending basically on the application of its sub-methodology DMAIC improvement cycle and the basic statistical tools where the process sigma level of concrete production in the case study was 2.41 σ.

Six sigma in health-care service: a case study on COVID 19 patients’ satisfaction

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kaja Bantha Navas Raja Mohamed ◽  
Palaninatha Raja M. ◽  
SharmilaParveen S. ◽  
John Rajan A. ◽  
Ranjitham Anderson
Keyword(s):  
Health Care ◽  
Waiting Time ◽  
Six Sigma ◽  
Quality Function Deployment ◽  
Health Care Service ◽  
Psychological Needs ◽  
Process Standardization ◽  
Content Type ◽  
Patients Satisfaction

Purpose The purpose of this paper is to determine the major influencing factors for the COVID 19 patients’ satisfaction with a six sigma framework model and to explore the successful deployment of six sigma in the health-care sector a case study on COVID 19 patients’ satisfaction. Design/methodology/approach The study is based on a descriptive research design conducted in Chennai, India between May to July 2020 wherein 1,000 COVID 19 patients were studied. The convenience sampling method is used by the researcher for data collection. In this research paper, define-measure-analysis-improve-control methodology has been applied and factors such as assurance, process standardization, infrastructure, waiting time, cost were analyzed using quality function deployment (QFD), regression analysis and Monte Carlo simulation. Findings The applied six sigma model indicated that process standardization contributed the most toward the variation in COVID 19 patients’ satisfaction. Assurance by doctors is the second important factor. The interpersonal quality is important, which indicates a higher level of psychological needs in COVID 19 patients. Waiting time is another important factor influencing COVID 19 patients’ satisfaction. One of the unexpected findings is that cost is insignificant in influencing COVID 19 patients’ satisfaction. Originality/value Six Sigma focuses on process variation improvement that encourages data analysis and problem-solving statistical techniques and evaluates the ability of a process to perform defect-free. Six sigma focused toward COVID 19 patients’ satisfaction has not been carried out, which this paper has done.

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.

Reducing failure rate at high voltage (HV) testing of insulator using Six Sigma methodology

2018 ◽  
Vol 67 (5) ◽  
pp. 791-808 ◽  
Author(s):  
Darshak A. Desai ◽  
Aurangzeb Javed Ahmed Shaikh
Keyword(s):  
Failure Rate ◽  
High Voltage ◽  
Six Sigma ◽  
Manufacturing Industry ◽  
Small Scale ◽  
Case Study Methodology ◽  
Content Type ◽  
Sigma Level ◽  
Ceramic Manufacturing

PurposeThis paper, a case study, aims to illustrate the application of Six Sigma in a small-scale ceramic manufacturing industry. The purpose of this paper is to demonstrate the empirical application of DMAIC methodology to reduce failure rate at high voltage (HV) testing of one of the most critical products, insulator.Design/methodology/approachThe case study is based on primary data collected from a real-life situation prevailing in the industry. The case study methodology adopted here is at one small-scale unit wherein the authors have applied DMAIC methodology and observed and recorded the improvement results, especially, reduction in failure rate at HV testing of insulator and, thus, increase in Sigma level.FindingsThe results found after implementation of the solutions are very significant. The rejection percentage has been reduced from 0.5 to 0.1 percent and consequently the Sigma level has been improved from 4.4 to 5.0.Research limitations/implicationsThis success story can be a guiding roadmap for other such industries to successfully implement Six Sigma to improve quality, productivity and profitability.Practical implicationsThis case study will serve as one of the resource bases for the industries which have till not implemented Six Sigma and benefited from the same.Social implicationsImproved quality and productivity leads to better economy. This case will help industries to serve the society with better economy with improved quality and productivity.Originality/valueThough ceramic industries in India are having enormous potential for growth, majority of them, especially, small and medium industries are either not aware of or not implementing Six Sigma to reap its multidimensional benefits of improving quality, productivity and profitability. This study highlights the benefits reaped by small-scale ceramic manufacturing industry opening up the avenues for its application at other such organizations.

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.

E­commerce structures for retail and service franchises

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zhanna Kremez ◽  
Lorelle Frazer ◽  
Scott Weaven ◽  
Sara Quach
Keyword(s):  
Business Strategy ◽  
Design Methodology ◽  
Case Study Method ◽  
Content Type ◽  
Preliminary Model ◽  
Multiple Case ◽  
Order Fulfilment ◽  
Franchise Networks ◽  
Practical Implications

PurposeThe purpose of this paper is to provide an in-depth investigation of e-commerce strategy implementation in mature franchise organisations from both franchisor and franchisee perspectives.Design/methodology/approachThis research employed a multiple case study method where the e-commerce strategies of two mature franchise organisations were investigated in depth. Franchising experts were interviewed to provide an additional dimension to this study.FindingsThis research found that e-commerce must be integrated with the overall business strategy for optimal franchise performance. Since all parties to the franchising relationship are affected by the introduction of e-commerce, both the franchisees’ and the franchisor’s interests must be considered when the strategy is being developed. In addition, the consumer’s perspective is central to how e-commerce is structured, and franchisees are best placed to know their customers’ needs because they are directly involved in operating their business and interfacing with customers.Practical implicationsA preliminary model for e-commerce structures in service and retail franchising has been developed that depends on the nature of the business, the distribution arrangements and the order fulfilment arrangements. The two main avenues in e-commerce structuring were centralisation and decentralisation.Originality/valueThis study contributes to knowledge through an in-depth investigation of the internal process of e-commerce implementation in franchise networks from both franchisor and franchisee perspectives.

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.

Adopting a digital transformation strategy to enhance business network commons regeneration: an explorative case study

2020 ◽  
Vol 32 (4) ◽  
pp. 561-585
Author(s):  
Alessia Zoppelletto ◽  
Ludovico Bullini Orlandi ◽  
Cecilia Rossignoli
Keyword(s):  
Business Strategy ◽  
Digital Transformation ◽  
Business Networks ◽  
Longitudinal Case Study ◽  
Business Network ◽  
Sustainable Business ◽  
Content Type ◽  
Italian Case ◽  
Transformation Strategy

PurposeThis article aims to understand whether and how a digital transformation strategy (DTS) can strengthen the relationship between network organizations and the generation/regeneration of their business network commons (BNC). Further, it investigates the role of the DTS in managing the BNC, a critical source of business network success.Design/methodology/approachA two-year longitudinal case study of an Italian business network operating in the wine sector was conducted.FindingsThis study provides theoretical insights into the digital, sustainable shift of a business network. On combining a network's business strategy and its DTS, digital resources are a key driver to promote BNC regeneration. A DTS undertaken to manage, regenerate and preserve the BNC can positively affect organizational variables, such as participatory architecture, and the network-level organizational integration and can help in preventing opportunistic behaviors affecting the BNC. Moreover, the DTS supports quality and social responsibility.Research limitations/implicationsThis study focuses on an Italian case and its findings are hence not generalizable. It would be interesting to study sustainable business networks' digital shift in different socioeconomic contexts as well as in different industry settings.Practical implicationsNetwork SMEs and other stakeholders (institutions, competitors and consumers) can foster the transition from a “business-as-usual” strategy to a long-term strategy for digitalized management of common resources.Originality/valueThe study is at the intersection of, and contributes to, several research streams. It contributes to the digital transformation literature by adding information on the positive externalities of digitalization in the social and economic environment. It also contributes to the early streams of organizational and managerial literature on the BNC.

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.

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