Erni Rusyani

Global Research Trends of Six Sigma in Management: A Bibliometric Perspective

Introduction

Global research trends of six sigma in management: a bibliometric perspective. Explore global Six Sigma research trends in management (2015-2025) via bibliometric analysis. Discover countries, evolving themes, and its strategic role for operational excellence.

Abstract

This study presents a bibliometric analysis of global research trends on Six Sigma within the management discipline, covering 747 publications indexed between 2015 and 2025 with an annual growth rate of 2.3 percent. The findings reveal a fluctuating yet generally positive publication trajectory, with notable peaks in 2020 and 2023, likely driven by global operational challenges and subsequent organizational restructuring. Geographic distribution indicates a strong concentration of research in a few countries, led by India, the United States, and the United Kingdom, reflecting disparities in research capacity and collaboration networks. Keyword co-occurrence mapping identified key thematic areas, including methodological foundations such as DMAIC and process improvement, strategic themes like critical success factors, sustainability, and Industry 4.0 integration, as well as sector-specific applications in healthcare, public services, and SMEs. The results underscore the multidisciplinary nature of Six Sigma and its evolution from a technical quality improvement tool to a strategic management framework, increasingly integrated with complementary approaches such as Lean, the Theory of Constraints, and ITIL. This adaptability enhances its relevance in diverse industrial contexts, contributing to operational excellence, strategic advantage, and customer satisfaction. Future research should explore digital technology integration, cultural and institutional adoption factors, and the long-term strategic impacts of Six Sigma to strengthen its global applicability.

Review

This study offers a timely and comprehensive bibliometric analysis of global research trends concerning Six Sigma within the management discipline, drawing upon a substantial dataset of 747 publications indexed between 2015 and 2025. The abstract effectively outlines the research's scope, revealing a fluctuating yet generally positive publication trajectory, with peak years attributed to global operational challenges. It also highlights significant geographical concentrations of research activity, predominantly in India, the United States, and the United Kingdom, pointing to disparities in research capacity and collaborative ecosystems. A core strength of this research lies in its detailed thematic mapping through keyword co-occurrence. The study successfully identifies fundamental methodological areas like DMAIC and process improvement, alongside strategic themes such as critical success factors, sustainability, and the integration of Six Sigma with Industry 4.0. Furthermore, it pinpoints its diverse application across sectors including healthcare, public services, and SMEs. Crucially, the findings underscore Six Sigma's evolution from a technical quality improvement tool to a multidisciplinary strategic management framework, increasingly integrated with complementary approaches like Lean, Theory of Constraints, and ITIL, thereby enhancing its adaptability and relevance across varied industrial contexts for achieving operational excellence and strategic advantage. Overall, this bibliometric review provides a valuable and structured overview of the current research landscape of Six Sigma, offering clear insights into its evolving role and significant contributions to operational efficiency and customer satisfaction. The study's forward-looking perspective is particularly commendable, as it explicitly outlines crucial avenues for future research. These include exploring digital technology integration, cultural and institutional adoption factors, and the long-term strategic impacts of Six Sigma, thereby furnishing a clear roadmap for scholars aiming to deepen its global applicability and theoretical understanding.

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