METHOD AND APPARATUS FOR GENERATING, UPDATING, AND SHARING ADDITIONAL INFORMATION FOR ELECTRONIC BOOK CONTENTS, AND SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method, apparatus, and system for generating, updating, and sharing additional information for electronic book contents.

SOLUTION: A method of creating a relationship diagram for electronic book contents in a terminal in the present invention comprises the steps of: determining whether or not there is a relationship diagram creation request in a current page; if there is the relationship diagram creation request, determining whether or not there is a relationship diagram associated with a previous page; if there is the relationship diagram associated with the previous page, displaying the relationship diagram in a corresponding creation window; and if the relationship diagram displayed in the creation window is modified and there is a save request, allowing the modified relationship diagram to be saved in accordance with the current page.

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