| 摘要 |
PROBLEM TO BE SOLVED: To provide file structure for an information retrieval system capable of narrowing properly a retrieval object, by only selecting a narrowing condition on a screen. SOLUTION: This structure is provided with a web server having a web page storage part storing a file for displaying a web page, the web page is constituted by congregating a plurality of unit pages provided with the narrowing condition display parts set with a plurality of narrowing steps and list-displayed with the narrowing conditions in the respective narrowing steps, and a narrowed result display part list-displayed with narrowed results narrowed by the plurality of narrowing conditions in the plurality of narrowing steps, the file corresponding to the unit page list-displayed with the narrowed results narrowed by a selection input, on the narrowed result display part, is selected based on the selection input for the narrowing conditions list-displayed respectively on the narrowing condition display parts in a terminal device, and the unit page is displayed on the terminal device. COPYRIGHT: (C)2007,JPO&INPIT
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