The present invention allows highly efficient high-speed data processing based on dynamic data federation among a plurality of data display means, without increasing the data volume in the individual data display means. A user data display section has a classification and component specific information table, which is extracted from a three-dimensional component database and a two-dimensional component database, and a component attribute data table associated thereto. A federation control section controls data federation among a three-dimensional component data display section, two-dimensional component data display section and user data display section. A jump section acquires the classification or component specific information using the classification and component specific information table, retrieves the three-dimensional component database or two-dimensional component database by controlling the three-dimensional component data display section or two-dimensional component data display section, and displays an image display screen of the three-dimensional component data or two-dimensional component data of the retrieved component.