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True or False - Maintenance Cost Proportions

publish date: 2026/06/24 21:38:17.277256 UTC

volume_mute

True or False: Across decades of industry studies, fault repair has consistently been found to consume a larger share of overall maintenance effort than adding or modifying functionality.

True

False

Correct Answer

False

Explanation

Industry studies consistently show that functionality addition or modification consumes the largest share of maintenance effort, not fault repair. Fault repair and environmental adaptation together typically account for a smaller combined share than functionality-related changes.

Reference

Software Engineering, Ian Sommerville, 10th edition

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