Abstract: To construct a system composed as described hereafter, capable of easily calling out monitoring data from a monitoring system, where task information along with index information is a key, and for which tracking by a task system is desired, by linking the index information of the monitoring data managed by the index information of the task information and monitoring system, with the storage location, and which is composed of a first and second type work area where tasks are performed, a monitoring system server, a monitoring data storage device, monitoring objects, a task system server, and a task data storage device.