| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reliable electronic commerce service capable of determining the payment timing by the convenience of a service user in the payment of the electronic commerce. <P>SOLUTION: Before the service user uses the service, the money for payment is transferred from the account 14 of the service user to the account 17 for payment (Step 104). The payment system 18 generates an electronic key B and transmits it to the service user 11 (Step 106), and registers the electronic key and the payment information in a payment information file. After using the service, the service user 11 delivers the electronic key B to a service provider 13, and the service provider 13 designates the electronic key B and instructs the transfer of the money to the account 15 (Step 115). The payment system 18 transfers the money for payment to the account 15 from the account 17 for payment if the received electronic key is registered in the payment information file (Step 118). <P>COPYRIGHT: (C)2003,JPO |
