sentences:  NASA has developed the International Docking Adapter in order to convert the older APAS-95 docking system used on ISS Pressurized Mating Adapters to the NASA Docking System.The first IDA, IDA-1 was originally scheduled to be attached to PMA-2, located on the forward hatch on Node 2, and IDA-2 was to be attached to PMA-3, on the zenith hatch on Node 2.Although after IDA-1 was destroyed, IDA-2 was rescheduled to be attached to PMA-2.