| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique allowing a client to easily access a server disclosing optimum information of a plurality of servers disclosing the same information on a network as the price information of a commodity. SOLUTION: A server to be retrieved discloses first data belonging to a data item group predetermined with a retrieval executing server and second data belonging to a data item group determined independently in each of servers to the retrieved. The retrieval executing server acquires the first data from a plurality of servers to be retrieved, stores the first data in relation to the address A of the server to be retrieved from which the first data is acquired, and discloses the first data and address A to a client. The client accesses the corresponding server to be retrieved in reference to the address acquired from the retrieval executing server to acquire the second data from the server to be retrieved. |
