(RFID)
This is the term for a technology that uses radiowaves to automatically track or identify objects or people. A microchip containing a serial number is attached to an antenna that transmits identification information to a reader, which in turn digitally passes it on to a computer. Retailers such as Wal-Mart use this technology to track goods within their supply chain to manage inventory and stock-outs.
Historical Dictionary of the Fashion Industry. Francesca Sterlacci and Joanne Arbuckle.