In a device, a generating unit generates the document-information sets corresponding to
each joint-author from the relevant-document information set, an analysis-result storing unit
stores the result of the user's analyzing the document-information sets corresponding to
each joint-author in the analysis-result DB as a topic, an analysis-result integrating unit
integrates the joint author's topics stored in the analysis-result DB and displays the topics
integrated as the integrated analysis-result screen. Appropriate screens are displayed to …