CONFLICT RESOLUTION SYSTEM FOR DATABASE PARALLEL EDITING

As a conflict resolution method for the modification/editing of databases, the mechanism "for assigning priority to editing based on more up-to-date information" is disclosed. The method is effective in both full-fledged "parallel DB editing" in which a computer holds duplicated DBs permanently and the case in which a computer holds the duplicated DBs temporarily. The method is characterized in that "editing based on old information is determined to be ineffective." When the information for which a conflict is predicted is edited, the possibility that the editing becomes ineffective can be reduced by a "substantially online operation" which performs "the synchronization with the up-to-date information, the editing, and the transmission of the editing records" quickly. Conversely, when the information for which the conflict is not predicted is edited, it is possible to carry out a "substantially off-line operation" which performs the editing at slow speed and transmits the editing records collectively after the synchronization of the information.