The evolution and future of lean Six Sigma 4.0

How The TQM Journal has addressed “quality”: a literature review using bibliometric analysis

Purpose

This study investigates the overall publications of The TQM Journal since its inception with an aim to identify the trending topics and emerging trends.

Design/methodology/approach

The quantitative bibliometric and social network analysis techniques composed of keywords, co-occurrence network and keyword cluster detection are employed to conduct the investigation. A total of 968 papers published in The TQM Journal till August 2022 were sourced from the SCOPUS database to conduct the analysis.

Findings

The research identifies five themes from the published articles namely, customer service experience and satisfaction; quality management and organizational performance; quality measurement tools and models; quality and sustainable development; and quality and competitive advantage. The study also identifies the most significant articles, authors and countries published in the journal and shows that Industry 4.0 is the trending topic and quality 4.0 the new emerging trend in the journal.

Research limitations/implications

The analysis is carried out only for papers published in The TQM Journal till August 2022; those after this month are not included in the analysis. The outcome of this study is dynamic in nature and subject to change over time as more papers, citations and collaborations are added to the list.

Originality/value

This is the first article of its kind to explore The TQM Journal publications with an aim to identify trending and emerging topics and also the most valuable authors based on the number of publications and citations through the bibliometric analysis.

Analysis of critical success factors for successful integration of lean six sigma and Industry 4.0 for organizational excellence

Purpose

Manufacturing industries are facing dynamic challenges in today’s highly competitive world. In the recent past, integrating Industry 4.0 with the lean six sigma improvement methodologies has emerged as a popular approach for organizational excellence. The research aims to explore and analyze critical success factors of lean six sigma integrated Industry 4.0 (LSSI).

Design/methodology/approach

This research study explores and analyzes the critical success factors (CSFs) of LSSI. A three-phase study framework is employed. At first, the CSFs are identified through an extensive literature review and validated through experts’ feedback. Then, in the second phase, the initial list of CSFs is finalized using the fuzzy DELPHI technique. In the third phase, the cause-effect relationship among CFSs is established using the fuzzy DEMATEL technique.

Findings

A dyadic relationship among cause-and-effect category CSFs is established. Under the cause category, top management commitment toward integrating LSSI, systematic methodology for LSSI and organizational culture for adopting changes while adopting LSSI are found to be topmost CSFs. Also, under the effect category, organizational readiness toward LSSI and adaptability and agility are found to be the uppermost CSFs.

Practical implications

The study offers a framework to understand the significant CSFs for LSSI implementation. Insights from the study will help industry managers and practitioners to implement LSSI and achieve organizational excellence.

Originality/value

To the best of the authors’ knowledge, CSFs of LSSI are not much explored in the past by researchers. Findings will be of great value for professionals in developing long-term operations strategies.

Analysis of barriers for implementation of integrated Lean Six Sigma and Industry 4.0 using interpretive ranking process

Purpose

Lean Six Sigma (LSS) is a continuous improvement procedure that helps in improving the performance, decreasing variations, reducing lead time and increasing profit. Industry 4.0 (I4.0) portrays a new phase in the enterprise and aims at digitalization of the enterprise. The basis of I4.0 is a cyber-physical system, leading to product networking and complete coordination of process, value enhancement and further optimization. Integrating LSS methodology with I4.0 will give an edge in competitiveness to an enterprise. The aim of this study is to identify and analyze barriers to have an obstacle free implementation.

Design/methodology/approach

LSS and I4.0 barriers are identified through literature review. In this paper 18 barriers of LSS and I4.0 that hinder the implementation of integrated LSS and I4.0 are collected. Analysis of barriers was done using interpretive ranking process (IRP).

Findings

From the results, it is observed that lack of top management attitude, commitment and involvement are the most dominant barriers.

Practical implications

The study is done by gathering inputs from industry practitioners and derived inferences have practical relevance.

Originality/value

The study of barriers for integrated LSS and I4.0 is the original contribution of the authors.