| 摘要 |
This invention provides a data management method and a data management system for automatically merging hierarchical keywords and attribute information into other hierarchical keywords and attribute information, and reducing the work of adding keywords to data. When first and second hierarchized keyword groups are given, keywords having the same keyword name or keywords equal in keyword names of all parents are extracted from the first and second keyword groups. A logical operation is performed for the extracted keywords, by using the keyword names, between a set of keywords immediately below a parent keyword in the first keyword group and a set of keywords immediately below a parent keyword in the second keyword group. On the basis of the logical operation, one hierarchized keyword group consisting of the keywords in the first keyword group and the keywords in the second keyword group is formed.
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