ISTQB Certified Tester Foundation Level (CTFL 2018) — Question 38

Which one of the following statements about techniques for estimating test effort is correct?

Answer options

• A. The metrics-based technique finds the most similar former project and uses its original estimate for the current project.
• B. The expert-based approach is based on the experience of the owners of the testing tasks or by subject matter experts.
• C. The metrics-based technique uses metrics supplied by the current test team based on their subjective feel for effort required.
• D. In an expert-based approach, the test lead with the most years in the role is chosen to produce the estimate.

Correct answer: B

Explanation

Option B is correct because the expert-based approach indeed draws on the knowledge and experience of those involved in testing tasks, which is essential for accurate estimates. Options A and C incorrectly describe the metrics-based technique, which does not rely on subjective feelings or previous projects in that manner. Option D specifies a criterion that may not necessarily ensure the best estimate, as it does not account for the quality of the experience.