| 摘要 |
<P>PROBLEM TO BE SOLVED: To properly manage a logic drawing that may be changed and modified at any time. <P>SOLUTION: A revision number of input drawing data is managed at least in logic sheet units. When drawing data whose revision number is under management and at least part of which is modified is input, the revision number of the modified drawing data is compared with the revision number of the drawing data under management. On the basis of a result of the comparison, the saved drawing data is replaced with the modified drawing data for a logic sheet having two different revision numbers, and the drawing data after replacement is used for such as display of a drawing. The revision numbers are also managed, for example, for each logic and in data units, so that partial modification and correction can be correctly reflected. <P>COPYRIGHT: (C)2012,JPO&INPIT |
