PURPOSE: To experience and learn the influences to the request definition including the request analysis and a basic design needed for construction of the information system and also to this system and its project with use of a consistent model covering the request definition through the operation of an information system and in a short time.

CONSTITUTION: A request hearing processing part 1 displays an answer every time a haring item is selected. A request confirmation processing part 2 shows the answer to the input of conformation, and a request definition processing part 3 selects a necessary request definition and shows it for each item. The correction input is received from a request definition correction processing part 4 against a request definition problem. Then, the solution of the problem is shown with a correct answer and the problem derived from the relevant request definition based on the correction frequency of the same item with an incorrect answer, respectively. In regard of the derived problem, one of those dealing items shown at a derived problem dealing part 5 is selected and inputted. Thus, the solution of the problem is shown at the time of with a correct answer and the correction is requested at the time of an incorrect answer, respectively.