| 摘要 |
PROBLEM TO BE SOLVED: To achieve a technique that presents a definitive combination of data for users without mechanical synchronization among a plurality of databases. SOLUTION: A database utilization system 10 comprises: a plurality of databasesα,β,γwith duplicated data at least in a portion thereof; a reliability decision database 30 for registering each reliability point with respect to a specific data item being set in each database; and a data processing part 24 for referring to the reliability decision database 30 when a search condition is entered and for extracting data in conformity with the search condition from the first place database of the reliability point with respect to a necessary data item. COPYRIGHT: (C)2005,JPO&NCIPI
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