Spiral model doesn't necessitate defining requirements at the earliest in the lifecycle?FALSETRUE

The statement "Spiral model doesn't necessitate defining requirements at the earliest in the lifecycle" is TRUE.

Explanation:

The Spiral Model is an iterative software development process that allows for evolving requirements over time. In this model, requirements can be refined and re-evaluated through various iterations (or spirals), making it flexible in accommodating changes that may arise during the development process. Unlike traditional models, where requirements are strictly defined at the beginning, the Spiral Model enables continuous assessment and adaptation.

Summary:

Thus, the Spiral Model does not necessitate defining all requirements at the earliest stage, as it focuses on iterative development and allows for changes based on ongoing evaluations and feedback.