Quality assurance focuses on which concept?

• A. Detection of defects after release
• B. Reducing costs
• C. Meeting customer demands
• D. The attempt to prevent defects and the process by which quality is measured

Answer: (D)

Preventing defects through structured processes and measuring quality along the way is what quality assurance is about. QA emphasizes setting up the right standards, workflows, and audits, and using metrics to monitor how well the process delivers quality before the product reaches the customer. Detecting defects after release is reactive and belongs to quality control, not QA, which is why that option isn’t the best fit. Reducing costs and meeting customer demands can result from good QA, but the central idea is the proactive prevention of defects and the ongoing measurement of quality. In short, QA focuses on preventing defects and the process by which quality is measured.