volume_mute
Multiple Answers: iteration between activities
publish date: 2026/05/29 21:38:5.123296 UTC
volume_mute
In practice, the four fundamental activities are not strictly sequential. Which statements correctly describe how they may interact?
Correct Answer
(1) Validation may reveal problems that require changes to the specification
(2) Evolution may lead to new specification and development work
(3) Development may uncover missing or inconsistent requirements
Explanation
The activities are interleaved and iterative; feedback from development, validation, and evolution can trigger changes to earlier activities.
Reference
Software Engineering, Ian Sommerville, 9th edition