Which two models doesn't allow defining requirements early in the cycle?
Correct answer: B. Prototyping & Spiral
- A. Waterfall & RAD
- B. Prototyping & Spiral
- C. Prototyping & RAD
- D. Waterfall & Spiral
Explanation
Prototyping and Spiral models are intended for situations where requirements are uncertain and are refined during development rather than fully fixed at the beginning. Waterfall, in contrast, expects early requirements definition.
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