electronic information system for generating a graphical display of a logical combination of search terms

摘要

Electronic information processing system and process for generating a graphic representation of a logical linkage of search keys. The following steps are carried out: inputting at least two search keys; allocating a symbol to each search key; inputting logical linking operators that indicate the logical linkage between the search keys; and selecting and displaying a graphic representation among a plurality of predetermined graphic representations that represent the possible logical linkages between the symbols based on the allocated symbols and the input logical linking operators.