Radio Frequency Identification - RFID is an established data-carrying and automatic identification technology used throughout industry.

 Data relating to an item is stored on an RFID tag which is attached to the item. Like a bar code, a tag is a data carrier. A bar code carries data in a visible symbol and is read by a bar code scanner using optical or infrared wavelengths.  An RFID tag carries data programmed into a small computer chip and operates at a wide range of radio frequencies.

The tag is activated by radio waves emitted from an RFID reader. The reader communicates wirelessly with the tag across what is known as the air-interface. Once activated, the tag sends data stored in its memory relating to the item back to the reader. This data can then be used within and between organisations and trading partners in a secure manner via the EPCglobal Network.

The use of RFID enables businesses to manage their supply chains with unprecedented levels of automation and a vastly improved degree of control.