Which defect classification describes a defect that seriously affects usability but is not a safety concern?

• A. Major
• B. Critical
• C. Minor
• D. Noncritical

Answer: (A)

Defect impact determines its classification. When a defect seriously hinders usability but does not pose a safety risk, it is labeled as major. This reflects a significant usability problem that disrupts how users accomplish tasks and should be addressed promptly, without implying a safety hazard. By contrast, a critical defect would involve safety issues or a complete system failure; a minor defect is a small issue with little effect on use; noncritical implies minimal impact beyond cosmetic or low-priority concerns. So, the defect that seriously affects usability while not being a safety concern fits the major category.