| 摘要 |
PROBLEM TO BE SOLVED: To intend to give benefit to supplier, student and teacher regarding music instruments and other teaching materials even in the case of a music training system using a communication network in the same way as the case using a music classroom. SOLUTION: A management device comprising a mail server 5 and an accounting server 6 manages the respective terminal devices 1, 3, 4 of a student who receives music training, a teacher who teaches the music training, and a supplier who sells music instruments, and other teaching materials through the Internet 2, and carries out the accounting to collect payment, when a notice to purchase the music instruments and other teaching materials is given to the supplier through the Internet 2. |
