volume_mute

Why Complete Validation Is Difficult

publish date: 2026/06/06 22:20:11.365626 UTC

volume_mute

Why is it difficult to fully validate that a set of requirements meets a user's actual needs? Select all that apply.

Users need to picture the system in operation and imagine how it would fit into their work — this is hard even for skilled professionals

It is rare to find all requirements problems during validation — further changes are inevitable after the document is agreed upon

Requirements validation tools are always too expensive

Only external consultants are qualified to perform requirements validation

The requirements engineering team is always too small to conduct a thorough review

Correct Answer

(1) Users need to picture the system in operation and imagine how it would fit into their work — this is hard even for skilled professionals

(2) It is rare to find all requirements problems during validation — further changes are inevitable after the document is agreed upon

Explanation

Validation is inherently difficult for two reasons: (1) Users must picture the system in operation and imagine how it fits into their work — this abstract analysis is hard even for skilled computer professionals; (2) It is rare to find all requirements problems during validation — further changes are inevitable after the requirements document has been agreed upon.

Reference

Software Engineering, Ian Sommerville, 9th edition

Quizzes you can take where this question appears

Requirements Validation