To easily create a specification describing the operation of an application.

Portable electric equipment is a handy terminal 3 or the like which comprises a display screen 5 and an operation part 6 and can execute an application program. The application setting device for the portable electric equipment comprises a simulator function for making the application for the portable electric equipment which is differed in hardware structure from the application setting device operable on the application setting device, in which a specification formation part successively records, by virtually operating the operation part of the portable electric equipment by use of the simulator, the description for the operation and the display content to be displayed on the display screen of the portable electric equipment in association with this operation to prepare the specification.