Spiral Model - Advantages & Disadvantages - Manual testing

Q.  Which is not true regarding Spiral Model?
- Published on 16 Aug 15

a. Risk analysis is involved in every cycle of development.
b. Uses series of prototype for refining test execution plan.
c. For any change we need to iterate the whole cycle.
d. Only this model has the risk analysis phase.

ANSWER: Uses series of prototype for refining test execution plan.

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