PURPOSE: To add the contents of a presenting side software without changing them on a diverting side while using any new method and to easily confirm which of sides is abnormal at the time of any abnormality.

CONSTITUTION: This device is composed of a storage part 4 storing any specified class name, new class name and token information, recognition part 1 for generating start information by classes corresponding to the token information while referring to the storage part, reading the input softwares of a class definition description and a method definition description, and sending communication information when there are the token information and the specified class name in the input software in a previously designated order, class name change part 2 for changing the specified class name into the new class name according to the communication information, and template definition part 3 for outputting the class definition description and the method definition description describing information required for execution processing according to the generated information while defining either of the specified class name or the new class name as a class name and defining the other as a superclass name according to the class of the start information.