PURPOSE: To enable even such persons except such specialists as a designer, a programmer, etc., to facilitate the construction, improvement of an HI.

CONSTITUTION: An automatic generation system for human interface includes a processing structure accumulating part 12 which accumulates the description contents showing the processing structure constructing a human interface, a detailed structure accumulating part 14 which accumulates the description contents showing the detailed structure of the human interface, an editing part 10 which edits the description contents stored in both parts 12 and 14, a structure analyzing part 16 which analyzes the description contents about the processing structure and the detailed structure accumulated in both parts 12 and 14 and generates the information to designate the human interface, and a human interface executing part 20 which executes the human interface based on the information generated by the part 16.