| 摘要 |
PURPOSE:To reduce a range for giving a hindrance to service, when a fault is generated in the course of service, by always storing the information between mutual files used by a user program and the information in case when the file is updated, in a system. CONSTITUTION:Information between mutual files of a file A, a file B- used by user programs PCT(A), PTC(B)- and information in case when the file is updated are always stored in advance in a storage device of a system. In this way, in case when a fault is generated in the user program PCT(B), the user program inputted and outputted in relation to the file B and T, and the file linked with it can be detected successively. As a result, it is detected that the programs PCT(B), (T) and (X), and the files (B), (T) and (X) are influenced, their operation is inhibited, and other user programs are made operable, by which a range for giving a hindrance to service can be reduced. |
