Abstract: When a necessary command term in a template indicated at the display in the apparatus for aiding in generating a source code is selected and a necessary parameter is input in an input area, the template indicates a source code the user desires to generate in a natural language. If a determiner determines that the necessary command term in the template has been selected and the necessary parameter has been input, a generator generates a source code corresponding to the statement in the natural language indicated in the template. The generated source code is displayed at a display. Therefor the apparatus can readily generate a source code based on an input or selected statement expressed in a natural language in a single display screen image.