| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and a method which an reduce the capacity of a storage device that is installed in each store and keeps a file such as music data, and that can easily obtain even a file for trial use that is not kept in the storage device in the store and also, can perform data file management with high quality and reliability. SOLUTION: This system transmits information inputted from a terminal about a folder requested by a user to a sub-server through a communicating means. The sub-serer received the information transmitted from the terminal about the folder and retrieves folders corresponding to the information about such a folder. Next, the sub-server refers to a sub-database and retrieves a transmittable file shown in a management table among the retrieved folders. The retrieved transmittable file is transmitted to the terminal through the communicating means. Then, the terminal receives the file transmitted from the sub-server. A main server decides the transmittable file shown in the management table on the basis of file exectuion contents by the terminal. |
