
324 Quality management for organizations using Lean Six Sigma techniques
distinction between short-term and long-term variation will also be considered to arrive at
the metrics of overall process performance and potential process capability.
15.2.1 Baseline performance metrics
15.2.1.1 Counting “defects” or “defectives”
Its examples are
• Specic sizes of new product not available at market introduction date (number not
available/number planned).
• Errors in test requests submitted for road test evaluation (number of requests with
errors/total number planned)—or—(total number of errors on all requests/total
number of “opportunities for error” ...