A data-driven quality management methodology that aims to reduce defects to fewer than 3.4 per million opportunities through systematic process improvement.
Six Sigma is a disciplined, data-driven methodology for eliminating defects and reducing variability in manufacturing and business processes. The goal is to achieve a defect rate of no more than 3.4 defects per million opportunities (DPMO), corresponding to a 99.99966% yield.
Six Sigma uses structured problem-solving frameworks — DMAIC (Define, Measure, Analyze, Improve, Control) for existing processes and DMADV for new designs. Manufacturers certified in Six Sigma demonstrate a commitment to process excellence. On FindMyFactory, Six Sigma capability is an indicator of a manufacturer's quality maturity.