METHOD FOR SELECTION OF RETRIEVAL WORDS AND PHRASES,SYSTEM ELEMENT AND PROGRAM MODULE

摘要

PROBLEM TO BE SOLVED: To eliminate the need of waiting time for calling each page when retrieval is restarted by returning to a hierarchy so as to simplify the operation at the time of retrieving a page on which information or actions are hierarchically arranged in a tree structure by making jumping to an adjacent page of an equivalent level possible. SOLUTION: Three hierarchical planes H0, H1, and H2 are provided. Jumps S1, S2, SS1, and SS2 are performed between pages in the plane H2. The jump S1 is made to a page P5.3 from a page P5.4 and the jump S2 is made to a page P5.8 from a page P5.1. The jump SS1 is made to a page P4.1 from the page P5.4 and the jump SS2 is made to a page P9.1 from a page P1.1. Other jumps are also possible in planes H2 and H1. Namely, jumping to other pages at the same hierarchical level is made to be made.