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Failure In Time (FIT) is another way of reporting(a) MTTR(b) MTTF(c) MTSF(d) MTBFThis question was addressed to me at a job interview.This intriguing question comes from Software Reliability Models in section Software Reliability and Fault Tolerance of Software Engineering

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Right ANSWER is (d) MTBF

To explain I would say: FIT reports the number of expected failures per ONE billion HOURS of operation for a device. This term is used particularly by the semiconductor INDUSTRY but is also used by component MANUFACTURERS .



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