ELECTRONIC-MONEY MANAGEMENT DEVICE, ELECTRONIC-MONEY MANAGEMENT METHOD, ELECTRONIC-MONEY MANAGEMENT PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM CONTAINING SAID PROGRAM

摘要

An electronic money management device according to one embodiment in an electronic money system that stores a balance of electronic money owned by a user in both of a storage device not under control of the user and a storage medium held by the user includes a post-update synchronization unit that, each time the balance in the storage device is updated based on instruction information for changing the balance in the storage device, reflects a change of the balance in the storage device on the balance in the storage medium through a terminal accessible to the storage medium held by the user having the updated balance.