Simulating System Mean‐Time‐to‐Failure on a Personal Computer

Reliability is the probability that a component or system will operate successfully for a given length of time under specified conditions. Mean‐time‐to‐failure (MTTF) is the average life span of a typical representative of the system under study. We explore mathematical models of MTTF for frequently encountered configurations, including units in series, parallel, combinations, stand‐by, and m‐out‐of‐n systems. They then provide logic to simulate each of these and provide detailed examples of programs run on a personal computer. The application of such simulations provide a convenient method for evaluating and designing alternative systems. The procedures can be applied to assist managers in assessing risk and making system reliability decisions.