A Central Recordkeeping Agency (CR

Six Sigma is a data-driven quality management methodology that aims to reduce process defects to no more than 3.4 per million opportunities (DPMO), representing a process capability of 6 standard deviations from the process mean. It uses structured problem-solving frameworks such as DMAIC (Define, Measure, Analyse, Improve, Control). TQM is a broader philosophy of organisation-wide quality commitment.  ISO 9001 is a quality management system certification standard. The Zero Defect Programme aims for absolute zero defects theoretically. Kaizen focuses on continuous incremental improvement. The specific metric of 3.4 DPMO is the unique identifier of Six Sigma and nothing else.