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Analyzing the critical success factors influencing Lean Six Sigma implementation: fuzzy DEMATEL approach

Shruti J. Raval (Department of Mechanical Engineering, S.V. National Institute of Technology , Surat, India)
Ravi Kant (Department of Mechanical Engineering, S.V. National Institute of Technology , Surat, India)
Ravi Shankar (Department of Management Studies, Indian Institute of Technology Delhi , New Delhi, India and School of Management, Asian Institute of Technology , Bangkok, Thailand)

Journal of Modelling in Management

ISSN: 1746-5664

Article publication date: 17 February 2021

Issue publication date: 25 May 2021

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Abstract

Purpose

Lean Six Sigma (LSS) is receiving a tremendous attention as a modern process of streaming to improve the organizational ability and customer satisfaction. A successful LSS implementation is influenced by various factors and the execution of all the influencing factors simultaneously is a very difficult task for any organization. From the perspective of limitation of resources, this paper aims to present a basic issue in an LSS implementation of clustering complex and impacting factors into groups to achieve them in a stepwise manner. This paper aims to present a fundamental issue of clustering the complex and impacting factors of an LSS implementation into groups to achieve them stepwise.

Design/methodology/approach

A total of 40 relevant influencing factors toward an LSS implementation have been identified from the extensive literature review and duly validated with experts’ opinions. Integrated fuzzy set theory and decision-making trial and evaluation laboratory (DEMATEL) approach are demonstrated to explore the causal relationships among influencing factors of the LSS implementation. An empirical case analysis of an Indian manufacturing organization is carried out to illustrate the utilization of the proposed model.

Findings

The proposed framework effectively finds out the significance of each influencing factor of an LSS implementation and clustered into cause–effect groups. As per the results of the empirical case analysis, ten critical success factors (CSFs) of the LSS implementation are evaluated for the successful LSS implementation. Top management pays more attention to achieve them and implement them in a phase-wise approach under the limitations of accessible resources.

Research limitations/implications

The presented framework provides an effective, precise and systematic decision support tool for recognizing CSFs of the LSS implementation. The organization, decision-makers, industrial practitioners and academic researchers may be able to comprehend the cause–effect relationship of the influencing factors of the LSS implementation. The exploratory nature and the single case study are two major limitations of this analysis. The developed model is heavily dependent on the experts’ opinions; hence, any bias in judgment will influence the final result.

Originality/value

This analysis is the first of its kind of effort, according to the best of the authors’ knowledge, to classify the influencing factors of LSS implementation into the cause–effect cluster. The outcomes of this analysis make the complexity of a problem easier in handling and assisting the decision-making.

Keywords

Acknowledgements

The authors confirm no conflict of financial interests or personal relationships regarding the work reported in this paper.

Citation

Raval, S.J., Kant, R. and Shankar, R. (2021), "Analyzing the critical success factors influencing Lean Six Sigma implementation: fuzzy DEMATEL approach", Journal of Modelling in Management, Vol. 16 No. 2, pp. 728-764. https://doi.org/10.1108/JM2-07-2019-0155

Publisher

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Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited