| 摘要 |
<P>PROBLEM TO BE SOLVED: To use a credit card by the currency of assets owned by a card member while utilizing an already popularized credit card network. <P>SOLUTION: In conventional card use information processing, available amount management and charged amount management are performed by using charging data, and sales data are used only for information to be displayed on details of use. This invented card use information processing, currency used is determined by using sales data and available amount management and charged amount management are performed by the currency used. In the available amount management, not only an available amount based on a charging currency but also an available amount based on an available currency are previously set and stored. <P>COPYRIGHT: (C)2007,JPO&INPIT |
