Patent ID: 7831929

Claim:
A system for controlling a display on an editing screen of a computer-aided design (CAD) system, comprising: a history recording unit for recording a history of commands executed while editing component data in a plurality of creation phases, in association with each of the creation phases from the creation start of the component data to the completion of edited component data; an input unit for entering a designation of component data as a new editing object; an acquiring unit for acquiring a data size of an editing unit from editing units of the designated component data; a determination unit for determining one of the creation phases of the designated component data based on the acquired data size; a retrieving unit for retrieving the history of commands corresponding to the determined creation phase from the history recording unit; and a display control unit for displaying on the editing screen of component data as the new editing object, at least one command included in the retrieved history of commands preferentially to other commands.