| 摘要 |
PROBLEM TO BE SOLVED: To easily acquire target data corresponding to CAD data generated by another CAD system except for a present system. SOLUTION: Corresponding to CAD data 1 generated on the outside, a text data area retrieving means 3 of a CAD data retrieval system 2 retrieves a prescribed character string (such as a drawing number, for example,) and a binary data area retrieving means 4 retrieves the identifier of a prescribed expression form (such as an identifier showing a slave drawing, for example). On the basis of these retrieved results, a data hierarchy information preparing means 5 generates the data hierarchy information of a tree form, for example, and stores this information in a data base 6.
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