| 摘要 |
PROBLEM TO BE SOLVED: To provide a meta-data retrieving system which drastically increasing meta-data retrieving speed. SOLUTION: Meta-data files applying to a retrieval condition are collected through the use of a meta-data collecting agent 4 and analyzed and, then, meta- data are extracted. The meta-data are previously registered in a general purpose database part 3e. When meta-data retrieval is requested, meta-data applying to the contents of the retrieval request are extracted from meta-data which are registered in the general purpose database 3e through the use of a general purpose database retrieval language.
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