ISTQB Certified Tester Foundation Level v4.0 — Question 15

Which of the following is the main difference between quality assurance (QA) and quality control (QC)?

Answer options

• A. QA is the responsibility of everyone on a project while QC is the responsibility of a dedicated team
• B. QA is a process-oriented approach, while QC is a product-oriented approach.
• C. QA is preventive while QC is corrective
• D. QA is focused on implementation, while QC is focused on improvement

Correct answer: B

Explanation

The correct answer is B, as quality assurance (QA) emphasizes process improvement to ensure quality, while quality control (QC) focuses on evaluating the final product to ensure it meets the required standards. Options A, C, and D contain elements of truth but do not capture the fundamental distinction between a process-oriented approach and a product-oriented approach.