1. An information processing editing apparatus comprising a processor programmed for allowing an editor to create final superimposed scenes from content information according to a predetermined specification, the processor comprising instructions for generating: a shared-scene creation module operable allow the editor to define shared scenes that are superimposable to create a single, superimposed final scene, the shared scenes being virtual scenes formed in accordance with an internal format and used to form the final scenes, each of the shared scenes comprising one or more shared objects that are controllable for display to create final scenes, the shared objects comprising user-selectable command objects and being separately controllable independent of the defined shared scenes in which the shared objects are displayed in accordance with the predetermined specification; a shared-scene processing module operable to enable the editor to virtually superimpose two or more shared scenes, each of the shared scenes comprising one or more of the shared objects, for creating the superimposed final superimposed scenes with the shared objects from each selected shared scene; an application creation module operable to describe control information in accordance with the internal format based on the shared scenes set by the editor via said shared-scenes creation and processing modules; and an output control module for converting the control information into shared object control information for forming the final superimposed scenes in which the shared objects selected by combining shared scenes are specified for display at the same time in the final superimposed scenes in accordance with the predetermined specification; wherein the superimposed final scenes are described by the combination of one or more shared scenes and one or more of the shared objects based on the internal format, and the converted control information is described based on one or more of the shared objects without the shared scenes.