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Quantitative analysis of Six Sigma, Lean and Lean Six Sigma research publications in last two decades

Alireza Shokri (Faculty of Business and Law, Northumbria University , Newcastle upon Tyne, UK)

International Journal of Quality & Reliability Management

ISSN: 0265-671X

Article publication date: 2 May 2017

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Abstract

Purpose

The purpose of this paper is to extend previous studies to a hybrid analysis of three business improvement practices of Lean, Six Sigma and Lean Six Sigma (LSS) within last two decades and identify the research gaps and focusses in more comprehensive and robust classification framework.

Design/methodology/approach

A secondary data collection and a literature review were conducted to collect information about peer-reviewed journal articles under six dimensions of a tested classification framework. The frequency and distribution analysis was conducted followed by Pearson’s χ2 test to analyse any relationship between dimensions of framework in order to identify the gap.

Findings

Despite a relatively great deal of regular research outputs about Six Sigma, Lean and LSS, academic journal articles have been found mainly limited to a few industries, themes and countries. “General manufacturing”, “healthcare”, “automotive” and “electronic industries” as sectors; and “tools and techniques”, “benefits” and “success factors” as key themes have been mostly approached by LSS, Six Sigma and lean management articles. It was also found that there is still a great disparity amongst researchers and journals to publish about these three business improvement practices.

Research limitations/implications

The research publications for LSS, Six Sigma and lean management should have wider approach towards various manufacturing and service sectors, countries and journal publications. A greater level of research/enterprise activities has been found in relation to LSS and Six Sigma articles compared to lean management articles.

Originality/value

This research aims to identify the gaps in research publications during last two decades about three major business improvement practices in one package and through more comprehensive robust classification framework and also through comparative analysis.

Keywords

Citation

Shokri, A. (2017), "Quantitative analysis of Six Sigma, Lean and Lean Six Sigma research publications in last two decades", International Journal of Quality & Reliability Management, Vol. 34 No. 5, pp. 598-625. https://doi.org/10.1108/IJQRM-07-2015-0096

Publisher

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Emerald Publishing Limited

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