[0025] FIG. 1 is a view illustrating a structure in which electronic money is traded through block chains;
[0026] FIG. 2 is a view illustrating a screen of transaction details regarding the related art electronic money system;
[0027] FIG. 3 is a view illustrating an overall configuration of a system for electronic money transaction (or an electronic money transaction system) according to an embodiment of the present disclosure;
[0028] FIG. 4 is a flow chart illustrating a process of electronic money transaction in an electronic money transaction system according to an embodiment of the present disclosure;
[0029] FIG. 5 is a view illustrating an example of electronic money information in an electronic money transaction system electronic according to an embodiment of the present disclosure, in which FIG. 5A illustrates customer information of a user, FIG. 5B illustrates account information of a user, FIG. 5C illustrates wallet information of a user, and FIG. 5D illustrates an exchange rate of electronic money, and FIG. 5E illustrates settlement information;
[0030] FIG. 6A is a view illustrating a data structure for allocating a plurality of coins to one wallet in an electronic money transaction system according to an embodiment of the present disclosure, and FIG. 6B is a view illustrating a screen when a plurality of coins are allocated to one wallet;
[0031] FIG. 7 is a view illustrating a screen displaying electronic money information that a user currently retains in an electronic money transaction system according to an embodiment of the present disclosure;
[0032] FIG. 8 is a view illustrating a screen illustrating a process of performing payment of electronic money between a computer device of a user and a point-of-sale (POS) terminal in an electronic money transaction system according to an embodiment of the present disclosure;
[0033] FIG. 9 is a view illustrating a screen of a result of electronic money transaction displayed in a POS terminal in an electronic money transaction system according to an embodiment of the present disclosure;
[0034] FIG. 10 is a view illustrating a process of performing electronic money transaction using a virtual address in an electronic money transaction system according to an embodiment of the present disclosure;
[0035] FIG. 11 is a view illustrating an internal configuration of an exchange server in an electronic money transaction system according to an embodiment of the present disclosure;
[0036] FIG. 12 is a view illustrating a configuration of software of an electronic money transaction system according to an embodiment of the present disclosure; and
[0037] FIG. 13 is a view illustrating an example of a software configuration for error processing in an electronic money transaction system according to an embodiment of the present disclosure