21. The information processing system according to claim 1, which further includes means for creating a note data base record to be linked to a currently displayed decision node in the expert system in response to the selection of a write representative icon displayed by said Graphical User Interface.
21. The information processing system according to claim 1, which further includes means for creating a note data base record to be linked to a currently displayed decision node in the expert system in response to the selection of a write representative icon displayed by said Graphical User Interface. 22. The information processing system according to claim 21, which further includes means to add a read representative icon to said Graphical User Interface display whenever one of said note data base records has been linked to the decision node of the knowledge record then being displayed.