| 摘要 |
PURPOSE:To charge without modifying a leased program by rewriting prescribed information so as to generate a fault at the time of utilizing the leased program, and charging corresponding to charge control information when it is decided that the fault is generated by rewrite. CONSTITUTION:A registration means 1 analyzes designation information 30, and finds the descriptor of an entry showing lease by a flag F for a program from a descriptor table 7 with a program name, and reads in the prescribed information in the descriptor, and registers corresponding charge control information on a registration table 6 with the program name, and issues indication to rewrite the prescribed information to a rewrite means 2. The means 2 rewrites the prescribed information so as to generate the fault. When the call of the leased program 9b is placed from a user program 8, preparation for execution is performed via a processing part 10. At this time, the fault is generated, and when a decision means 3 decides the fault as the one due to the rewrite, a charging means 4 is started up, and charging is performed based on charge information from the table 6. |
