Contactless identification with limited read distance. Just a simply touch will the card be indentified.  Limited read range also provide user protecting their user’s data and prevent  unwanted operation 

Access control data management. RFID technology help users more efficiently manage visitor’s access data, such as vistor’s profile, password and access authority through relevant RFID software. Time attendance system is based on this idea. 

Security . RFID provides reliable security features either by its unique ID and password or by its encryption algorisms. Especially when advanced DES and 3DES encryption algorisms introduced, user data by nowadays technology is impossible to break.