This document discusses RFID (Radio Frequency Identification) and its applications. It begins by explaining what RFID is and its basic components - RFID tags, readers, and software. It then describes the different types of RFID tags - passive, semi-passive, and active - and provides examples of their read ranges and uses. The document outlines several current applications of RFID technology, including credit cards, transportation payment systems, toll collection, and access control. It also shares the results of an online survey on RFID conducted with small and medium enterprises. In conclusion, it discusses further potential development areas and provides both positive and negative perspectives on RFID technology.