Traditional IC card for taking attendance requires participants moving to particular location and taking the IC card to sign in. Perhaps, some of them are not willing to queue and take attendance. However majority of the participants has important identities. It is out of courtesy and not convenience for them by using contact card. Moreover it is not convenient for congress management.
　　Open passageway conference sign-in system is the latest intelligent sign-in system. It is completely difference in traditional contact card. The participants wear the IC card and simply walk through the system; it will collect data and take attendance automatically. That can improve speed of movement significantly as the participants no need to contact the card reader.