| 摘要 |
<p>Based on past failure sign appearance situations and past failure occurrence situations, failure occurrence probability which varies with a time elapse after failure sign appearance is calculated, and also, based on maintenance cost information of an operations management objective system, a short-term troubleshooting cost required for responding to a failure associated with the failure sign appeared in the system is calculated. Furthermore, based on the past failure sign appearance situations and the past failure occurrence situations, and also, the maintenance cost information and the failure occurrence probability, a short-term first preventive maintenance cost required for preventive maintenance of the failure associated with the failure sign, and also, the failure occurrence probability and a short-term second preventive maintenance cost for when preventive maintenance performance is postponed until next failure sign appearance, are calculated. Then, options in which the short-term first preventive maintenance cost, the short-term second preventive maintenance cost and the troubleshooting cost are associated with the failure occurrence probability, are prepared to be offered via an output device.</p> |
