PROBLEM TO BE SOLVED: To allow a purchaser of commodities to take out nonlife insurance every commodity at need when ordering them in electronic commercial transaction to improve the safety and reliability in the transaction.;SOLUTION: A user terminal unit receives a Web page including a screen for sales from an ISP server to select commodity and insurance and transmits the order information of the selected commodity and insurance to the ISP server. The ISP server transmits the commodity order information transmitted from the user terminal unit to a terminal unit of a seller and transmits insurance order information to an insurance providing terminal unit. If such a problem that a user terminal unit side must receive compensation has occurred in this ordering, the ISP server transmits a demand for insurance service to the insurance providing terminal unit.;COPYRIGHT: (C)2003,JPO
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