| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology of reducing loads on devices and a network, when the devices exist on the network and there is an apparatus including a plurality of applications which require event notifications on the devices.SOLUTION: First to third applications 30a-30c issue event notification requests to an event management service 20. The event management service 20 integrates the event notification requests from applications in one PC, or the first to third applications 30a-30d, and issues only one request to each of devices (first to third devices 90a-90c). Each of the devices transmits an event notification in response to the event notification request. Each of the devices transmits one event notification to one PC, accordingly. |
