The quick design of a software that is visible to end users leads to _____.

Answer: prototype model

Explanation: A prototype is a quickly built, interactive version of the software that end users can see and try. It is created early to elicit user feedback and to clarify or refine requirements.

• Clarifies requirements by letting users interact with a tangible system.

• Reveals usability and design issues early so they can be fixed before full development.

• Reduces the risk of building the wrong product and can save time and cost by preventing extensive rework.

Why other development approaches do not match this description:

• Iterative development repeats cycles of design and implementation, but the question specifically emphasizes a quick, visible design created for end-user evaluation, which is the purpose of prototyping.

• The spiral approach centers on managing and reducing risk via repeated cycles; while it may involve prototypes, its primary focus is risk assessment rather than producing a quick demo for user feedback.

• The waterfall approach is a linear sequence of phases and does not prioritize creating an early visible version for users to evaluate.