EXTREME AMOUNT CALCULATION METHOD, EXTREME AMOUNT CALCULATION DEVICE, COMPUTER PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide constitution capable of suppressing the risks of a creditor and enabling the borrowing of funds as much as possible.;SOLUTION: The constitution comprises: a currency rating-factor file 1 for currency rating-factor storage; a subject rating-factor file 2 for subject rating- factor storage; a balance file 3 for storing the balance of trust owned by a user; an exchange rate file 4 for storing an exchange rate between respective currencies; and a calculation part 5 for calculating a creditor account extreme amount by reading the balance of the trust in the case that the kind of a creditor account currency is specified, reading respective currency rating-factors corresponding to the kinds of the key currencies, calculating the temporary balance by respectively multiplying them with the balance of each trust, reading the respectively corresponding subject rating-factors, multiplying them with the temporary balance of each thrust, reading the exchange rates for the temporary balance of the trust of the key currency different from the kind of the credit account currency specified by a user, respectively multiplying them and obtaining the total of the respective temporary balances.;COPYRIGHT: (C)2004,JPO