Title: State of the art review on Lean Six Sigma with Industry 4.0 integration

Authors: R. Vigneshvaran; S. Vinodh

Addresses: Department of Production Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India ' Department of Production Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India

Abstract: LSS4.0, a combination of Lean Six Sigma and Industry 4.0 has brought revolutionary changes in manufacturing and management concepts due to the data driven nature of Lean Six Sigma. In addition to customisation, waste reduction and value addition, LSS4.0 provides process variation reduction, quality enhancement through elimination of repetitive task, service orientation, decentralisation and so on. Although LSS4.0 offers many significant advantages, still organisations are reluctant to implement the integrated LSS4.0 approach due to lack of proper knowledge about LSS4.0 and its significance in the current manufacturing environment. This article attempts to identify the current trend and future prospect of LSS4.0 through the systematic literature review method. A framework to integrate and implement LSS4.0 is proposed in this study through analysis of LSS4.0 in various perspectives like barriers and challenges of LSS4.0, principles, enablers, critical success factors of LSS4.0. The framework proposed acts as a guideline for industrial practitioners to implement LSS4.0.

Keywords: Lean Six Sigma; Industry 4.0; I4.0; Lean Six Sigma 4.0; LSS4.0; systematic literature review; SLR; framework.

DOI: 10.1504/IJSOM.2026.154595

International Journal of Services and Operations Management, 2026 Vol.54 No.2, pp.229 - 252

Received: 16 Mar 2024
Accepted: 19 Apr 2024
Published online: 07 Jul 2026 *

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