For user behaviors of a day, the objective of the invention is to provide technology which is capable of knowing the type of the activities, activity time and activity qualities. Provided is a computer-readable storage medium storing a program for causing a computer to function as: an activity information acquiring section that acquires activity information indicating times during which each of aplurality of types of activities was performed by a user; a quality information acquiring section that acquires quality information indicating a quality of the activity at each timing within the timesduring which each of the plurality of types of activities was performed; and a graph data generating section that generates graph data based on the activity information and the quality information, the graph data representing each time when various types of activities are performed and the activity qualities of each moment in the time according to time sequence.