An information processing apparatus for suitably corresponding a plurality of images as an editing object to each of a plurality of scenes constituting scenario data. In the apparatus, when a read button (211) is operated, a material clip (212) as an editing object is displayed on a material tray (201). When a tag (271-1) is selected, a shaker window having a section button (281) is displayed. Scenarios correspond to a plurality of selection buttons (281), respectively. The number of scenes, an effect given to each scene and the like are designated to each scenario. A user selects one selection button (281) to select one scenario. When a shake button (285) is operated, a predetermined one is selected at random out of material clips (212) designated in advance by a user to assign it to each scene of the scenario selected by the user.