An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional device of the same type in the decoding step that comprises a time gate processing step. The closure comprises a door forming at least a portion of the passage, wherein the door is formed from a molded thermoplastic material comprising a polyolefin resin, a nucleating agent and a siloxane processing aid. This method includes identifying a reference to an external target in a software product, creating an identifier for the external target, and adding the identifier to the reference.