A managing computer is provided having an acquiring device for acquiring log information and event information from among a plurality of computers connected via a network to each other into a common database of the managing computer. A data controller may be provided for storing into the common database of the managing computer, operation definition information used to define a schedule of process operations executed in the plurality of computers in relation to the log information and the event information acquired by the acquiring device. A display device may display the operation definition information in relation to event information related to a process operation defined by the operation defining information with reference to the information stored in the database.