To identify respective items in a cargo according to their assigned codes by using a scanning device, inputting the data automatically into the computer system. Those assigned codes usually come in the form of bar coding, magnetic stripes, optical character recognition and radio frequency (RF).

Sometimes called automatic data capture. These are methods of collecting data and entering it directly into computer systems without human involvement. Technologies normally considered part of auto-id include bar codes, biometrics, RFID and voice recognition.

Automatic identification and data collection encompasses a wide range of technologies which have as their purpose automating the data entry process. These technologies include bar code, optical character recognition, magnetic stripe and magnetic ink character recognition (MICR), voice, RF identification, touch screens, light pens, hand print tablets, optical mark readers, and smart cards. Strictly speaking, automatic identification only includes those technologies that electronically detect a unique characteristic or unique data string associated with a physical object. The information obtained is used to classify the object through the use of electronic data processing (e.g. serial number, part number, color, manufacturer, etc.). See also automatic data collection.