QR Code - Standards

Standards

There are several standards in documents covering the physical encoding of QR Codes:

  • October 1997 – AIM (Association for Automatic Identification and Mobility) International
  • January 1999 – JIS X 0510
  • June 2000 – ISO/IEC 18004:2000 Information technology – Automatic identification and data capture techniques – Bar code symbology – QR code (now withdrawn)
    Defines QR code models 1 and 2 symbols.
  • 1 September 2006 – ISO/IEC 18004:2006 Information technology – Automatic identification and data capture techniques – QR Code 2005 bar code symbology specification
    Defines QR code 2005 symbols, an extension of QR Code model 2. Does not specify how to read QR Code model 1 symbols, or require this for compliance.

At the application layer, there is some variation between most of the implementations. Japan's NTT DoCoMo has established de facto standards for the encoding of URLs, contact information, and several other data types. The open-source "ZXing" project maintains a list of QR Code data types.

Read more about this topic:  QR Code

Famous quotes containing the word standards:

    “Chief among our gains must be reckoned this possibility of choice, the recognition of many possible ways of life, where other civilizations have recognized only one. Where other civilizations give a satisfactory outlet to only one temperamental type, be he mystic or soldier, business man or artist, a civilization in which there are many standards offers a possibility of satisfactory adjustment to individuals of many different temperamental types, of diverse gifts and varying interests.”
    —Margaret Mead (1901–1978)

    “It gives me the greatest pleasure to say, as I do from the bottom of my heart, that never in the history of the country, in any crisis and under any conditions, have our Jewish fellow citizens failed to live up to the highest standards of citizenship and patriotism.”
    —William Howard Taft (1857–1930)

    “That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.”
    —John Dos Passos (1896–1970)