| 摘要 |
PROBLEM TO BE SOLVED: To reduce time and effort for trial associated with updating of a program. SOLUTION: A distribution server 2 determines whether to distribute the program by verifying the version information of an object program to be distributed, which is already distributed to a predetermined terminal 1, with the version information of the object program of the latest edition stored in a storage device. When determined that the distribution of the program is necessary, the server refers to trial history data of the object program of the latest edition, and determines whether trial necessary conditions are satisfied which are the fact that the terminals 1 equal to or more than predetermined numbers are already successful with trial. When the trial necessary conditions are satisfied, the server notifies the predetermined terminals 1 of the fact that the object program of the latest edition to be distributed will be used without trial. COPYRIGHT: (C)2009,JPO&INPIT
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