Patent ID: 6854646

Claim:
A transaction management system which processes transactions using settlement cards each containing individual control information for at least identifying a card holder, the transaction management system comprising: a credit account information memory section that stores individual control numbers and information associated with the individual control numbers about card owners identified by the individual control numbers; a count-up condition memory section that stores at least one count-up condition indicating a predetermined range of transaction types; a count area that stores numerical information indicating the number of transactions meeting the count-up conditions for each of the individual control numbers; an extraction condition memory section that stores extraction conditions each defining a conditional formula that specifies a range of numerical values; a transaction processing section that processes each transaction using the settlement card based on the individual control number that is input at the transaction and transaction information for the transaction; a memory count section that judges whether or not the transaction meets the count-up condition, and renews the numerical information when the transaction meets the count-up condition; and an extraction section that determines if the numerical information renewed by the memory count section is within the predetermined range indicated by the conditional formula, and extracts, when the numerical information is within the predetermined range, the individual control information corresponding to the count area storing the numerical information determined to be in the predetermined range.