Maintenance policy for multivariate standby/operating units

In this paper the maintenance of multi-component systems, which may be either in operating condition or in the standby mode is studied. A less than perfect testing procedure to detect failures in the latter case is considered. We focus on the existence of an optimum policy weighing the cost incurred under this policy against the cost derived from an undetected failure. Copyright © 2002 John Wiley & Sons, Ltd.