W J Howard; N Kaufman; TRW SPACE TECHNOLOGY LABS REDONDO BEACH CALIF.
Two problem areas concerning systems subject to periodic checkout, which were investigated with the aid of a computer are described. The first part (Parameter Estimation) summarizes the results of a Monte Carlo analysis to determine the feasi bility and accuracy of measuring system failure rates, checkout error probabilities, and repair effectiveness from the numbers of systems passing and failing in three consecutive checkouts. The second part (Availability Analysis) describes, mainly through a series of graphs, the quantita tive variation of system availability with a number of operational and maintenance parameters representing time durations of standby, checkout, and repair, failure rates during standby and checkout, repair effectiveness, decision errors during checkout, and test coverage. (Author).