| 摘要 |
PURPOSE:To continue the schedule management of a work by a schedule definition without suspending it by constituting the title system so that read-out and write of schedule control information can be executed even in a switching period of a schedule file. CONSTITUTION:A continuous information shifting means 3 shifts schedule control information to be continued in schedule control information which has been stored in an expiration schedule file 1, to a new schedule file 2, and also, stores shift state information in a shift state storage table 4. Subsequently, when write and read-out of the schedule control information have been requested, a file selecting means 5 selects to which of the expiration schedule file 1 and the new schedule file 2 read-out and write of the schedule control information are to be executed, based on the shift state information which has been stored in the shift state storage table 4. In such a way, even in a switching period of the schedule file, the schedule management of a work conforming to a schedule definition can be continued without being suspended. |
