A Self–Evaluation Maturity Assessment Model for Lean Six Sigma Implementation in SMEs

Abstract

This study develops a structured maturity model to assess SMEs' readiness for the implementation of Lean Six Sigma. The model presents a tool that will assist organizations in evaluating their current maturity level before LSS deployment. A comprehensive literature review was performed to find the critical success elements, barriers, and relevant frameworks. These insights were then used to develop a four-level LSS maturity model with a scoring-based assessment instrument. The developed model was refined by expert consultations and subsequently validated using four SME case studies. Findings: The model successfully distinguished the preparedness levels of LSS among the participating SMEs. Scores ranged from Level 1 (Uncertain or Limited) to Level 3 (Understanding or Good). The tool demonstrated strong capability in identifying organizational strengths, gaps, and priorities. Practical implications: It can assist owners or managers by providing an evidence-based mechanism to assess their readiness, benchmark their performance, and plan the implementation of LSS more effectively. It aids structured decision-making and reduces the likelihood of failure at early deployment stages. Originality/value: This work is one of the first LSS maturity models focused on SMEs, along with a quantifiable scoring system, making both academic and practical contributions to improve the assessment of LSS.