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The mean average operating time between consecutive system failures in a repairable software system is measured by:

AMean Time To Repair (MTTR)
BMean Time To Failure (MTTF)
CFailure Rate ($lambda$)
DMean Time Between Failures (MTBF)

Explanation

MTBF calculates operational uptime reliability between repair cycles ($MTBF = MTTF + MTTR$).

Exam Relevance
  • Topic: Software Quality Metrics
  • Subtopic: Reliability Metrics
Submitted by: mcqstutor Team More Software Engineering MCQs →

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