| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce an amount of communication between a server 10 and an information terminal 30.SOLUTION: After a data update unit 14 updates file data, the server 10 transmits corresponding identification information and version information to the information terminal. The information terminal 30 determines whether the received version information is stored in a browser cache 36. When the received version information is not stored in the browser cache 36, the information terminal 30 requests the server 10 to transmit the corresponding file data, and when the received version information is stored in the browser cache 36, the information terminal 30 does not request the server 10 to transmit the corresponding file data.</p> |
