
316 ◾ Software Metrics
Drivers of testing process quality
Testing team
experience
Testing tools quality
Testing process quality
Testing effort
Quality of overall
documentation
Testing process
overall effectiveness
Testing coverage
achieved
Quality of
documented test
cases
Indicators of testing process quality
Probability of finding
defect
FIGURE 7.21 Typical subnet for testing quality.
Residual defects pre
Residual defects post
Probability of
fixing defect
Probability of
finding defect
Defects found Defects fixed
New defects inserted
New defects removed
Defect insertion
probability
FIGURE 7.20 Defects phase subnet.