ISTQB Certified Tester Advanced Level – Test Analyst (CTAL-TA) — Question 56

Which of the following statements BEST describes checklist based and black-box test techniques?

Answer options

• A. Checklists are an excellent source of test design for inexperienced testers, requirement specifications are often used as the basis for applying black-box techniques.
• B. The checklist based technique is most effective when applied by experienced testers; black-box techniques are most effective applied against a well specified test basis.
• C. The checklist based technique produces consistent, reproducible test cases; test cases produced by black-box techniques are less systematic.
• D. Checklist based testing derives tests from lists which focus on defects; black-box techniques find defects through systematic test case design.

Correct answer: D

Explanation

Option D is correct as it highlights that checklist based testing focuses on identifying defects using predefined lists, while black-box testing emphasizes structured test case development. Options A and B incorrectly suggest that checklist techniques are only for inexperienced testers, which is not the case. Option C mischaracterizes black-box techniques as being less systematic, whereas they are typically designed to be thorough and organized.