toote (süsteemi, elemendi) omadus täita ettenähtud ülesandeid, säilitades kasutusajal oma parameetrid etteantud piires; ka vastupanu ootamatule purunemisele
the probability that a device will function without failure over a specified time period or amount of usage at stated conditions
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A quantitative measure of the ability of a product or service to fulfill its intended function for a specified period of time.
