OMR, Shaded boxes or lozenges on a paper questionnaire to be read in directly to a computer, RFID, To automatically track an item in a distribution centre without the need for any scanning; the item can be recognised from up to 50 metres away, QR code, Device that can read a matrix made up of dark squares on a light background; these squares represent data which can be read by a smartphone camera, Bar codes, Device that can read alternating dark and light lines, of varying thickness, that can be used to identify an item, OCR, System that can take characters on paper and convert each character into a form that can be understood by, for example, a word processor

Direct data entry (DDE)

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