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Process Metrics for Assessing Maintainability
publish date: 2026/06/24 21:18:39.003282 UTC
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Which of the following are process metrics described as useful for assessing maintainability after a system has been put into service? Select all that apply.
Correct Answer
(1) Number of requests for corrective maintenance
(2) Average time required for impact analysis
(3) Average time taken to implement a change request
(4) Number of outstanding change requests
Explanation
The four process metrics used for assessing maintainability are: number of corrective maintenance requests (rising numbers may indicate declining maintainability); average impact analysis time (rising time means more components affected); average implementation time; and number of outstanding change requests (an increase implies declining maintainability).
Reference
Software Engineering, Ian Sommerville, 10th edition