The three categories of quality are

• A. design, conformance, and performance
• B. reliability, availability, maintainability
• C. accuracy, completeness, timeliness
• D. efficiency, effectiveness, safety

Answer: (A)

Quality is built on three core categories: design quality, conformance quality, and performance quality. Design quality asks whether the product is thoughtfully created to meet user needs—the right features, usability, and overall concept. Conformance quality looks at whether the product is produced to the exact design specifications, with consistent, defect-free output. Performance quality measures how well the product actually works in real use—the outcomes it delivers, reliability, and ability to meet required standards.

These three together explain why a product can fail to be truly high quality even if one part is strong: great design but poor manufacturing undermines quality, and excellent manufacturing to a bad design won’t deliver good performance. The other options describe different domains—reliability, availability, maintainability; data quality attributes like accuracy, completeness, timeliness; or broad performance/safety measures—not the three quality categories focused on design, conformance, and performance.