Multiple choice technology architecture

Which of the following is an example of a nonfunctional criteria?

  1. Requirements

  2. Defect density

  3. Failure Modes

  4. Availability

  5. Specifications
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nonfunctional criteria (or nonfunctional requirements) describe quality attributes and constraints rather than specific behaviors or features. Availability is a classic nonfunctional requirement - it specifies how available the system must be (e.g., 99.9% uptime). Requirements, defect density, failure modes, and specifications are either functional requirements or quality metrics, not nonfunctional criteria themselves.

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