| 摘要 |
PROBLEM TO BE SOLVED: To make an end user able to quickly cope with the restoration of data at the time of power source interruption without being conscious of the consistency of data by providing a management file for managing the execution state of an application program and activating the monitoring program. SOLUTION: The application(AP) program 3 for fetching the data from a transaction(T) file 5, executing an arithmetic processing to the data and writing them to a user(U) file 6 and the management file 4 for recording the progress conditions of processings executed by the AP program 3 are provided. Then, the monitoring program 1 detects the progress conditions from the management file 4 and judges the necessity/unnecessity of data recovery. When the monitoring program 1 judges that the data recovery is required, a restoration program 2 refers to the recording of the management file 4, fetches the data from the T file 5 and restores the U file 6. |
