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Waterfall and feedback

publish date: 2026/05/28 22:08:33.878417 UTC

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Although the waterfall model is often drawn as a simple cascade, real projects involve feedback between phases.

Which statement best reflects this reality?

Feedback is only allowed if the customer pays extra.

Feedback is only allowed from maintenance back to requirements.

In practice, phases overlap and information flows back to earlier phases when problems are discovered.

Phases never overlap and no feedback is allowed.

Correct Answer

In practice, phases overlap and information flows back to earlier phases when problems are discovered.

Explanation

Design may reveal requirements issues, and coding may reveal design problems, so some iteration and feedback are inevitable even in a waterfall-like process.

Reference

Software Engineering, Ian Sommerville, 9th edition

Quizzes you can take where this question appears

The Waterfall Model