ISTQB Certified Tester Advanced Level – Test Analyst (CTAL-TA) — Question 58

Which of the following statements about defect based techniques is TRUE?

Answer options

• A. The coverage criteria for black-box test techniques tends to be less systematic than for defect based test techniques.
• B. Defect based testing is a technique that identifies defects in requirements early in the lifecycle.
• C. Defect based techniques are mainly used by developers at the component test level.
• D. In defect based testing, the type of defect sought is used as the basis for test design.

Correct answer: D

Explanation

The correct answer, D, accurately describes that defect based testing focuses on specific types of defects to guide the test design process. Option A is incorrect because black-box techniques often have systematic coverage criteria. Option B misrepresents the timing of defect identification, as defect based testing primarily focuses on identifying defects during the testing phase rather than in requirements. Option C is also incorrect since defect based techniques can be applied at various testing levels, not just by developers at the component level.