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Arjun's firm is developing an e-filing portal. The client is unsure about the final screens and expects frequent changes after seeing early working versions. Which SDLC approach best suits this situation?

A prototyping or iterative model suits this case. Because the client is unsure of requirements and expects changes, early working versions gather feedback and refine the design, whereas the waterfall model freezes requirements early and handles changing needs poorly.

  1. AWaterfall model, because each phase is completed and frozen before the next begins
  2. BPrototyping or iterative model, because early versions elicit feedback and refine requirementsCorrect
  3. CBig-bang deployment, because all code is released at the end without interim reviews
  4. DMaintenance-only model, because requirements are fixed after go-live

Explanation

When requirements are unclear and expected to change, prototyping or iterative models let users review working versions and refine requirements. The waterfall model is rigid and assumes requirements are fixed up front, so it fits poorly here.

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