The prototyping model of software development is :

Answer: The prototyping model is a useful approach when a customer cannot define requirements clearly.

Why this is correct: prototyping produces a working or visual model that users can interact with, which helps discover and refine real requirements through feedback and iteration.

• Allows stakeholders to see and test features early, revealing unstated needs and preferences.

• Supports iterative refinement: each prototype cycle improves requirements and design.

• Reduces the risk of building the wrong system by validating ideas with real users early.

Drawbacks and when to be cautious:

• Can encourage informal design and insufficient documentation if not paired with proper engineering practices.

• May lead to scope creep if prototype scope and purpose are not clearly defined.

• Less suitable as the sole approach for very large, tightly coordinated systems that need strict architecture and documentation.

Recommendation: Use prototyping when requirements are unclear and early user feedback is essential; combine it with clear objectives, limited scope for each prototype, and complementary documentation to manage risks.