Analyzing The Impact Of Combining Lean Six Sigma Methodologies With Sustainability Goals

Abstract

This study integrates Lean Six Sigma (LSS) methodologies with sustainability frameworks to enhance process efficiency while achieving environmental and social objectives. Using a systematic review approach guided by PRISMA guidelines, 52 peer-reviewed articles were analyzed to provide comprehensive insights into the applications, challenges, and advancements of LSS in sustainability contexts. The findings reveal that LSS tools, such as value stream mapping and the DMAIC framework, are widely implemented across industries to reduce waste, optimize resource utilization, and improve operational outcomes. Advanced technologies, including IoT, AI, and data analytics, are increasingly integrated into LSS practices, enhancing their effectiveness in achieving sustainability goals through real-time monitoring and predictive capabilities. Sector-specific insights highlight the successful application of LSS in manufacturing, healthcare, and supply chain operations, with significant reductions in carbon footprints, material waste, and energy consumption. Furthermore, developing sustainability-focused key performance indicators (KPIs) such as carbon intensity and resource usage metrics is a critical advancement, enabling organizations to quantify and track their sustainability progress. This review underscores the evolving role of LSS as a comprehensive framework for operational excellence and sustainability, offering valuable recommendations for industry and academia to address contemporary environmental and operational challenges.