with BarCodes (and QR Codes)

  • Can be read only by a machine
  • WCodes can be read by machines but it required system is more complex
  • WCodes require have much larger footprints.

with Spelling Alphabets

  • Every word of a spelling alphabet represents only a single character of the original message.
    whereas a single word of a wcode can encode more than one character - and thus is shorter.
  • WCodes can represent binary data.