dependability(redirected from dependable)
Also found in: Dictionary, Thesaurus.
(technology), the ability of an item to maintain its working capacity for a certain time or until the completion of a specified amount of work under given service conditions without forced interruptions. For items that are irreparable or replaceable after the first failure, as well as products for which such failures are intolerable because of safety conditions, the dependability indexes utilized may be, for example, the probability of dependable operation and the failure rate. For reparable products the dependability indexes may be the mean-cycles-between-failures time and the probability of dependable operation.