a font generation system which is designed to emerge various fonts based on user’s Kansei without hand drawing, evolving colors in user interfaces to search for a solution that provides a good trade-off between aesthetics and accessibility requirements, an office layout support system which can generate not only in square space but also in polygonal space, a user interface design which evolve user interfaces in the XUL interface definition language which is a user interface markup language developed by the Mozilla project, a sign sound design which is to generate melody based sounds freely and easily, a web site design system which has users to be involved in the process to generate web page.