Abstract: To improve convenience when creating slides for a presentation. A presentation material creation apparatus includes a material creation unit that creates a card-shaped object in which characters or a figure can be placed on the basis of an operation of a user through a GUI (graphical user interface) and places the object on a field, and also sets an order for the multiple objects, and a material playback unit that outputs a presentation material outputting the objects in the set order. When one object is superimposed on another object by an operation of the user, the material creation unit creates an object in which the one object is placed inside the other object.

Abstract: Provided is a user interface system which can facilitate dynamic data check and selection upon video data edition and can effectively perform video data edition. It is possible to execute a dynamic image reproduction in a thumbnail icon region by mouseovering thumbnail icons displayed on a display and symbolizing the dynamic image data. By performing double/single click, it is possible to perform zoom in and zoom out. Thus, it is possible to perform various displays when discarding and selecting dynamic image data, thereby facilitating the video data edition.