Patent ID: 7784011

Claim:
A circuit-design supporting apparatus that supports designing a circuit in which a PLD is used as a component, the circuit-design supporting apparatus comprising: a PLD-information storing unit that stores therein design information, which is created by using a PLD-design supporting apparatus with respect to the PLD, as PLD information; a pin-swap-information receiving unit that receives pin swap information, which is information on a pin swap performed in a package design with respect to the PLD; a pin-swap processing unit that reflects the pin swap in circuit design information by using the pin swap information, and keeps a record of a change history of the PLD information stored in the PLD-information storing unit; and a change-history outputting unit that outputs notification information to be notified to the PLD-design supporting apparatus to reflect the pin swap in PLD design information held by the PLD-design supporting apparatus based on the record of the change history of the PLD information, the change-history outputting unit recording an output history each time the notification information is output and outputting the notification information by specifying a change history which is not notified yet based on the output history.