An examination of changing patterns in Lean Six Sigma research

Abstract

Purpose The purpose of this study was to examine patterns in the research contributions from individuals in the field to detect whether they reflect the evolution of academic discussion concerning integration of Lean and Six Sigma methodology over a fixed time period. Design/methodology/approach Data was gathered from a keyword search of articles in the SCOBUS data base to determine the most frequent contributors in the areas of Lean, Six Sigma and Lean Six Sigma research. Searches were carried out over five-yearly intervals from 2000 to 2015 and the twenty-one top contributors in each time period were identified. Findings The findings show that research contributions have moved away from looking at the single methodologies of Lean and Six Sigma and towards research based on the integrated Lean Six Sigma approach. The analysis also suggested that researchers may be publishing papers using different methodologies in response to different challenges in selecting the most appropriate tools to meet the needs of the specific issues they are addressing rather than advocating a particular approach. Practical implications For organizations to optimize performance a flexible approach would be beneficial with consideration being given to the specific issue and the correct tools and methodology selected from an integrated system or from Lean or Six Sigma systems alone. Originality/value This paper has originality in its’ consideration of the patterns of research contributions over a fixed time period as a reflection of the shift in debate from exclusive Lean or Six Sigma approaches to a more integrated Lean Six Sigma system.