| 摘要 |
PROBLEM TO BE SOLVED: To provide a system where data on a server is efficiently used with a communication terminal while maintaining the consistency of the data. SOLUTION: When a user carrying an RF (radio frequency) tag sits down in front of the communication terminal 3A, the communication terminal 3A reads ID information from the RF tag (S101, S102), and makes an access request for user data to a data management server 2 (S104). The data management server 2 notifies the communication terminal 3A that the user data is used by a communication terminal 3B (S106). When the use of the communication terminal 3B is completed, the server notifies the communication terminal 3A that it is not used (S109). Thus, the communication terminal 3A downloads the user data (S115), and performs editing work. When the work is completed, user data is uploaded (S120), and the user data in a memory is eliminated. COPYRIGHT: (C)2008,JPO&INPIT
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