| 摘要 |
PROBLEM TO BE SOLVED: To display at all times a homepage dynamically changing its display on a screen or the updated and latest information of a homepage without imposing a burden on a communication line when homepages are inspected on the Internet, and to increase homepage display sate. SOLUTION: In response to a data request (101) from a client computer 1 via the Internet 16, a WWW server 12 stores, as cache data, transmission data transmitted according to the data request (101) in a storage 15 of the server 12 on the requester-by-requester basis. The server 12 reads out the latest objective data for each data request from the client computer 1, compares (102) the objective data with the cache data 15, and transmits (104) only the difference data to the client computer 1.
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