Definition
Six Sigma is a data-driven quality improvement methodology aimed at reducing defects, minimizing process variations, and increasing efficiency. Developed by Motorola in the 1980s, it combines statistical analysis, process improvement strategies, and structured problem-solving techniques to achieve near-perfect performance levels. The goal of Six Sigma is to maintain a process variation of no more than 3.4 defects per million opportunities (DPMO), ensuring high-quality standards in products and services.
Six Sigma follows two primary methodologies:
- DMAIC (Define, Measure, Analyze, Improve, Control) – Used for process improvement.
- DMADV (Define, Measure, Analyze, Design, Verify) – Used for designing new products or processes with minimal defects.
By focusing on continuous improvement and waste reduction, Six Sigma helps organizations streamline operations, enhance customer satisfaction, and increase profitability.
