Formula:
The DPMO (Defects Per Million Opportunities) is a key metric in Six Sigma, quantifying process quality by measuring the number of defects in a process per one million opportunities. It's calculated using the following formula:
DPMO = (D / (U × O)) × 1,000,000
- D = Total Number of Defects (The count of non-conformances observed)
- U = Total Number of Units Inspected (The total number of items, products, or services evaluated)
- O = Number of Opportunities for a Defect per Unit (The number of chances for a defect to occur within a single unit or process step)
A lower DPMO value indicates a higher quality process with fewer defects.