| 摘要 |
<P>PROBLEM TO BE SOLVED: To clearly indicate a secondary tree structure to a user and to facilitate operation of a network type document by the user. <P>SOLUTION: A document management means (441) manages a document structure, in which a component unit is a logic unit serving as a logical assembly of a document and the logic units are related each other by a reference unit defining a reference relation between the logic units. A display object tree structure management means (442) forms a display object tree structure representing display of a part of or the whole of the document structure by hierarchical structure and manages the display object tree structure and the structure in the displayed document structure while relating them mutually. <P>COPYRIGHT: (C)2004,JPO |
