| 摘要 |
PROBLEM TO BE SOLVED: To provide a data management device capable of efficiently correcting all corresponding pages when there is update in a certain page and preventing the generation of mistake at the time of correction. SOLUTION: A change of an original file 11 is checked by comparing the file 11 with a corresponding copied file 21 at each prescribed time. When the change of the file 11 is confirmed, the contents of the file 11 are compared with that of the file 21 and the contents of all converted files 31 corresponding to the changed part are automatically updated. |
