Specimen Barcode and Labeling Guide: Difference between revisions
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===2D barcodes=== | ===2D barcodes=== | ||
*Data Matrix code is a two-dimensional matrix barcode consisting of black and white cells arranged in either a square or rectangular pattern. The information to be encoded can be text or numeric data. Usual data size is from a few bytes up to 1556 bytes. The length of the encoded data depends on the number of cells in the matrix. Error correction codes are often used to increase reliability: even if one or more cells are damaged so it is unreadable, the message can still be read. A Data Matrix symbol can store up to 2,335 alphanumeric characters. | *Data Matrix code is a two-dimensional matrix barcode consisting of black and white cells arranged in either a square or rectangular pattern. The information to be encoded can be text or numeric data. Usual data size is from a few bytes up to 1556 bytes. The length of the encoded data depends on the number of cells in the matrix. Error correction codes are often used to increase reliability: even if one or more cells are damaged so it is unreadable, the message can still be read. A Data Matrix symbol can store up to 2,335 alphanumeric characters. They look similar to a QR code, but have different encoding. | ||
<br><br>[[File:220px-Datamatrix.svg.png|center|100px]]<br><br> | <br><br>[[File:220px-Datamatrix.svg.png|center|100px]]<br><br> | ||
* QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte / binary, and kanji) to efficiently store data; extensions may also be used. <br><br> [[File:220px-Wikipedia_mobile_en.svg.png|center|100px]]<br><br> | * QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte / binary, and kanji) to efficiently store data; extensions may also be used. <br><br> [[File:220px-Wikipedia_mobile_en.svg.png|center|100px]]<br><br> | ||