| 摘要 |
A relay device, which is arranged between a plurality of terminal devices and a file device and relays data communication between the terminal device and the file device, including: a storage unit configured to store a change history of each piece of data acquired from the file device by a request from the terminal device; a communication unit configured to perform transmission or reception of data with the plurality of terminal devices and the file device; and a computation processing unit configured to, in a case where a change history of first data acquired from the file device by a request from a first terminal device of the plurality of terminal devices is different from a change history of second data having the same file name as the first data acquired from the file device after acquisition of the first data by the first terminal device by a request from a second terminal device of the plurality of terminal devices, control and cause the communication unit to notify the first terminal device that the first data is changed to the second data, is provided. |
