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Basically RFID (Radio-Frequency IDentification) is a wireless communication technology within the L1 (Layer 1, the physical layer of the OSI 7-layer Reference Model) and L2 scopes between RFID tag and reader. The RFID reader reads the code in the RFID tag and interprets it by communicating with the IS (Information Services) server via a proper communication network. This is the typical architecture defined by EPC (Electronic Product Code) global. RFID networks need to provide value added services in order to give better visibility to inventory movement across supply chain or closed loop applications like asset tracking or work in progress tracking.