The impact of operational excellence methodologies on sustainable performance in the service sector: a systematic literature review
系统梳理了精益、六西格玛和精益六西格玛对服务业可持续绩效的影响，发现现有研究主要关注运营效益，对社会和环境维度的关注不足。
In today's competitive marketplace, organizations adopt Lean, Six Sigma, and Lean Six Sigma to enhance efficiency, reduce waste, improve quality, and increasingly promote sustainability. This article systematically reviews the impact of these methodologies on sustainable performance in the service sector, which contributes 51.6% of GDP across 168 countries. Analyzing 99 articles from 2013-2023, the study reveals limited research linking Lean Six Sigma to sustainable performance in services. Findings show a predominant focus on operational benefits (79%), with minimal emphasis on financial (15%), social (3%), and environmental (2.66%) measures. Our findings highlight the need for research addressing the comprehensive impact of these methodologies on all dimensions of sustainable performance.