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| Datamatrix code: upper, left. QR code: upper, right. |
Which 2dcode is better—QR codes or Datamatrix? People will agree to disagree on thissubject. (Generally) speaking, using one over the other is negligible. I saythis because the best reader apps will read both, anyway. Datamatrix is moreefficient, has better error correction, a better finder pattern, etc. Whileadvertisers have been quick to adopt QR codes for their ad campaigns, the twocodes are visually similar enough that someone would not be any less inclinedto scan a Datamatrix code if they happened by one. The underlying principle foreach code is the same—“What will happen after the code is scanned?”
Datamatrix is the code of choice for industry groups for use in their supplychains—commerce for aerospace, automotive, healthcare, pharmaceutical andnutraceutical, electronics, etc. Also, Datamatrix performs better when markingproducts directly (for example, printing on a variety of surfaces such as plasticor metal) and can be printed with a much smaller footprint. In addition,Datamatrix codes are approximately 20% more efficient than QR codes. Meaning, theycan be that much smaller and contain the same amount of data, or the same sizecode can be read from 20% further away.
Chris Lehan is the Director of Product Development at Impressions Incorporated (a multi-color printer in St. Paul, MN specializing in the complete production of customized printing and paperboard packaging). http://www.i-i.com/
Follow me on Twitter @chrislehan
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