| 摘要 |
A system provides tickets from a server to a client device connected to the server via a network. The client device includes a ticket generating unit that receives ticket data from the server and generates a ticket by recording information represented by the ticket data on the ticket, a reading unit that reads the information recorded on the ticket, and a client side transmission unit that transmits data representing the information recorded on the ticket to the server. The server includes a ticket transmission unit that transmits the ticket data to the client device, a judging unit that judges whether the ticket is properly generated in accordance with the data transmitted from the client side transmission unit, and a re-transmission control unit that operates to transmit the ticket data again to the client device if the judging unit judges that the ticket is not properly generated. |
