Data file history management method and apparatus thereof

An apparatus for managing data file history, comprising:

• a history information reserving means for reserving a data file produced accompanying an input of data upon basis of edition operation, with comment information, to be history information, relating to a management name thereof;
• an icon displaying means for displaying plural numbers of data files on a display screen, through an icon for data file unique to each of the data files, responding to the editing operation of the data files, and also displaying a relationship of the each of the icons through an icon for showing history;
• a combined information input screen displaying means for displaying a combined information input screen on said display screen when a combining operation is executed on at least two or more of the plural numbers of icons for data files displayed on said display screen;
• a knowledge information reserving means for reserving knowledge information as the data file, when said knowledge information is inputted forgiving meaning onto changing processes of a group of the data files, which are designated to be a target for said combination, accompanying the display of said combined information input screen;
• and
• a combined file reserving means for reserving a management name indicative of an address of reservation of the each data of the group of data files, which are designated to be said target of combination, and a management name indicative of an address of reservation of said knowledge information, to be information for searching an icon name after combining.