A test manager sees that the defect detection percentage (DDP) has dropped from 80% to 60% in the latest release. The team has not changed its test process. What is the most likely explanation?

The test team is not working as hard as before.

The total number of defects increased significantly, possibly due to changes in product complexity.

The release had fewer defects overall.

The metric is no longer valid and should be abandoned.

A test manager is preparing a metric dashboard for a project that is transitioning from waterfall to agile. The stakeholders are concerned about the ability to track progress in short iterations. Which metric selection is most appropriate for this context?

Defect density and test execution time.

Defect detection percentage and defect density.

Requirements coverage percentage and test case count.

Test case pass rate per iteration and cumulative defect detection percentage.

A test manager wants to assess whether the test process is effective at finding defects before release. The team has been tracking the number of defects found during testing and the number found in production. Which metric would best provide this insight?

Defect detection percentage (DDP)

Certified Tester Expert Level Assessing Test Processes

Domain 3Objective 5

Test Effectiveness Metrics CTEL-ITP-ATP Practice Questions (Page 7)

Part of the Domain 3: Analytical-based Improvement domain, which makes up ~32% of our current practice bank.

33questions here

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Questions 31–33

31expert · hard
A test manager sees that the defect detection percentage (DDP) has dropped from 80% to 60% in the latest release. The team has not changed its test process. What is the most likely explanation?
Select an answer first
32expert · hard
A test manager is preparing a metric dashboard for a project that is transitioning from waterfall to agile. The stakeholders are concerned about the ability to track progress in short iterations. Which metric selection is most appropriate for this context?
Select an answer first
33application · medium
A test manager wants to assess whether the test process is effective at finding defects before release. The team has been tracking the number of defects found during testing and the number found in production. Which metric would best provide this insight?
Select an answer first

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Test Effectiveness Metrics CTEL-ITP-ATP Practice Questions (Page 7)

Questions 31–33

A test manager sees that the defect detection percentage (DDP) has dropped from 80% to 60% in the latest release. The team has not changed its test process. What is the most likely explanation?

A test manager is preparing a metric dashboard for a project that is transitioning from waterfall to agile. The stakeholders are concerned about the ability to track progress in short iterations. Which metric selection is most appropriate for this context?

A test manager wants to assess whether the test process is effective at finding defects before release. The team has been tracking the number of defects found during testing and the number found in production. Which metric would best provide this insight?

Keep studying — Domain 3: Analytical-based Improvement