The present invention improves the efficiency with which the resources of a device monitoring system are used.A management server stores a device type-dependent database and a monitored device database for devices that are to be monitored by a device monitoring module. The types of information that can be processed by the management server and so on are stored in the device type-dependent database per device type. When this database is updated, notification setting information specifying information that the device is to notify the management server of is created in accordance with the details of the update and sent to the management server. The device sends events and other data to the management server in accordance with the notification setting information.