| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve the application of a correction program to a system and the operation verification of the system without stopping a task. <P>SOLUTION: This computer system is provided with: a main control system 100 for controlling an IO device 500 according to a program; a maintenance control system 200 for applying the correction module of the program in an environment in which the main control system 100 is duplicated; and a correction module management manager 300 for executing the operation verification of the maintenance control system 200, and for, when it is determined that the system normally operates as the result of verification, shifting the execution environment of the control of the IO device 500 from the main control system 100 to the maintenance control system 200. <P>COPYRIGHT: (C)2012,JPO&INPIT |
