| 摘要 |
PROBLEM TO BE SOLVED: To improve the safety. SOLUTION: In this system, a user selects desired goods (service) from goods (service) information transmitted from a host system 6 of a store to a computer system of the user and transmits ordering information of selected goods (service) to the host system 5 of the store together with a card name, a card number, a password number, a payment method, etc., and the system 6 of the store inquires of a host system 1 in a credit company whether the charge for purchase of goods (service) can be liquidated by the card or not; and if it can be liquidated by the card, the order is received. The credit company is provided with a means with which a card owner sets an authentication number which cannot be used after being used once, and the user uses this authentication number instead of the password number to order goods (service). |
