E
EAN
The International Article Number (originally European Article Number) is a standard method of marking retail goods, and consists of 8 or 13 digits, usually in the form of a barcode.
EAS
Electronic article surveillance, a widespread method of preventing theft that works with so-called 1-bit transponders, which only send "present" or "missing" information.
EPC
Electronic Product Code
a standard method of marking objects by RFID technology similar to EAN with barcode.
EPC Global
EPCglobal is an organization that leads development worldwide of standards for the use of RFID technology in the supply chain.