This study focuses on the Toyota production system (TPS) and Lean in relation to innovation. The authors examine the tools and behaviors adopted in the TPS that are absent in the Six Sigma (SS) programs and how these elements may influence innovation and quality. Finally, this research analyzes the hybrid Lean Six Sigma (LSS). System analysis involves assessing a business scenario to improve the situation, establishes the changes needed and required, and innovation and product quality as components of the system analysis. This paper undertook text excavating and focused cluster development on highlighting the level of the Lean Six Sigma representations, as explained in articles on the Lean Six Sigma, such as those that compare Lean and Six Sigma. An iterative cluster examination was adopted to understand the primary focus of research in this area. The analysis shows that there is less research on the intersection of TPS and LSS in the areas of philosophy, partners, and people. These areas represent the opportunity to enhance the application of process improvement methods.
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