Patent ID: 7427022

Claim:
A ticket management system including a terminal device and a ticket management server, the terminal device comprising: a reading unit for reading an electronic value stored in a storage unit, the electronic value being electronically represented value information; an acquisition unit for acquiring, from a ticket to which non-updatable value information is assigned, identification information which identifies the ticket; a transmission unit for transmitting an electronization request that is a request to convert the non-updatable value information into another electronic value and includes the acquired identification information, to the ticket management server; and a value update unit for updating the electronic value stored in the storage unit so as to show value information calculated based on the non-updatable value information corresponding to the identification information and the value information shown by the electronic value stored in the storage unit, and the ticket management server comprising: a status storage unit for storing the identification information and status information showing whether the ticket identified by the identification information has been electronized, in correspondence with each other; a reception unit for receiving the electronization request from the terminal device; and a change unit, when the status information corresponding to the identification information included in the electronization request shows that the ticket has not been electronized, for changing the status information to show that the ticket has been electronized.