6. Defect removal efficiency
•Number of post-release defects (found by clients in field operation), categorized by level of severity
•Ratio of defects found internally prior to release (via inspections and testing), as a percentage of all defects
•All defects include defects found internally plus externally (by customers) in the first year after product delivery
7. Complexity of delivered product
•McCabe's cyclomatic complexity counts across the system
•Halstead’s measure
•Card's design complexity measures
•Predicted defects and maintenance costs, based on complexity measures
8. Test coverage
•Breadth of functional coverage
•Percentage of paths, branches or conditions that were actually tested
•Percentage by criticality level: perceived level of risk of paths
•The ratio of the number of detected faults to the number of predicted faults.
9. Cost of defects
•Business losses per defect that occurs during operation
•Business interruption costs; costs of work-arounds
•Lost sales and lost goodwill
•Litigation costs resulting from defects
•Annual maintenance cost (per function point)
•Annual operating cost (per function point)
•Measurable damage to your boss's career
10. Costs of quality activities
•Costs of reviews, inspections and preventive measures
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