A set of two probabilities, the definition of which vary by field. In medicine, the sensitivity and specificity are conventionally used. In the field of defect detection testing, the probabilities of detection and false call are conventionally used.
Because of the large number of reliability techniques, their expense, and the varying degrees of reliability required for different situations, most projects develop a reliability program plan to specify the reliability tasks that will be performed for that specific system.
Reliabilitytesting may be performed at various levels, such as component, subsystem, and system.
Reliabilitytest plans are designed to achieve the specified reliability at the specified confidence level with the minimum number of test units and test time.
The reliability of the system is simply the probability of the union of all mutually exclusive events that yield a system success (the unreliability is the probability of the union of all mutually exclusive events that yield a system failure).
Reliability growth analysis provides the means by which the reliability, mean life or failure rate is tracked over time, allowing the user to predict future reliability values based on the current rate of growth of the reliability measurement of interest.
This is a type of accept/reject sequential testing in which accept/reject boundaries are defined by the user and units are sequentially tested until either the accept boundary or the reject boundary have been reached, and a decision is made about the suitability of the units.
Feeds |
Contact