| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem wherein articles cannot be correctly traced in a situation where all the history is not registered on account of the difference of time required to register history depending on processes and in a situation where a part of the history has disappeared. <P>SOLUTION: A history table for holding history information, and a history relation table for holding history relation information are provided in addition to a process table for holding process information, and a process relation table for holding process relation information. Upon the arrival of history, history in the preceding and succeeding processes is retrieved to prepare both the history relation between the history in the present process and the history in the preceding process and the history relation between the history in the present process and the history in the succeeding process. Using the process table, the process relation table and collected history information, history of portions which have not reached is estimated and displayed in the order of work. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
