PROBLEM TO BE SOLVED: To hardly generate the shortage of electronic money while preventing the balance of the electronic money from being increased.;SOLUTION: A limit sum as the sum of electronic money which can be used by a user in a prescribed period in a facility is preliminarily stored in a limit sum storage means for every one or a plurality of facilities (#14), and when the user enters any facility, the difference between the limit sum of the facility which the user enters and the balance of the account of the user prior to entry, is calculated, and an electronic money management center is requested to pay electronic money equivalent to the sum below the difference to the account of the user (#16).;COPYRIGHT: (C)2010,JPO&INPIT
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