DPMO
Six Sigma
DPMO (Defects Per Million Opportunities)
Defects Per Million Opportunities
Number of defects divided by total defect opportunities, multiplied by one million.
Examples
- 01A circuit board with 500 solder joints and 1,000 boards checked shows 75 defects, giving a DPMO of 150.
- 02In the Measure phase, the Green Belt calculates DPMO for each board type, which allows a fair comparison between a simple board with 80 joints and a complex one with 900.
- 03After a new stencil design, the control plan tracks DPMO monthly, and the value stays below 40 for six months.