Glossary of Barcode Terms

 Also called Matrix Barcodes – refers to barcodes that encode data both vertically and horizontally, different from the usual 1D barcod. These are capable of encoding much more information than normal barcodes. QR Codes are the most common type of 2D Barcodes.

 These are sequential numbers usually encoded in Code-39 or Code-128 format barcodes. Labels featuring unique barcode numbers are attached to a company’s assets to monitor their flow in and out. These barcode formats are also employed in libraries to borrow books.

 A kind of two-dimensional barcode featuring an Aztec pyramid-shaped centre finder pattern (a pattern used by the scanner to identify the centre point). These barcodes are mainly used for transportation tickets, like those issued by Eurostar.

The height of the shortest bars in a barcode. This refers to the bars only and does not include the number at the bottom.

 For barcode specifications. Refers to the total width of all of the bars. This excludes the quiet zones on either side of the bars.

 An Image used to contain a small amount of information to be easily read by a barcode scanner or cell phone app.

 Refers to a purchase option that some barcode retailers offer whereby both the Barcode number and the Barcode images can be purchased at the same time. This sometimes also includes a guarantee certificate and can also include barcode registration.

 An optional service offered by some alternative barcode suppliers to increase the internet profile of barcodes and ensure that the product information appears when the barcode is scanned by cell phone apps. There is no mandatory registration database for barcode numbers.

 An extra number is calculated using a special method and added to the end of a barcode. This helps make sure that the barcode isn’t typed in incorrectly by accident. If even one digit is wrong, the check digit will change. Also known as a check-digit.

 A barcode symbology is used mostly for asset tracking. Can only encode numeric data. Has a high data density so very small items should use labels with this instead of code-39 as code-128 should scan more easily.

 A barcode symbology is used mostly for asset tracking. Can encode alpha-numeric data (letters and numbers). Code-39 has a low data density so small goods should not be labelled with this because small barcodes of this type may be difficult for a scanner to pick up.

 Referring to the section of a barcode number that comes after The length of this prefix depends on the number of barcode numbers that the company owns. For example, if a company has 10,000 barcode numbers, the company prefix needs to be shorter to fit within the 13-digit limit.

 Refers to the first three digits of a retail barcode number which indicates which GS1 member organisation the barcode came from. A common misconception is that this shows the country of origin of the product when in reality it only shows the country of origin of the barcode itself.

 A kind of two-dimensional barcode utilised in engineering and production sectors. Employed to find specific parts while manufacturing.

 European Article Number – The 13-digit standard retail barcode is used almost ubiquitously throughout the world. Only in the USA do they use UPC-A Barcodes more commonly, although stores still accept EAN-13 Barcodes. EAN-13 can refer to the barcode number or the barcode format.

 The data contained within a barcode is known as its encoding. For an EAN-13 Barcode, this is the 13-digit number.

 Can refer to the type of image file that the barcode image is in, the symbology of the barcode, or how the barcode is broken up into sections.

 Global Location Numbers are 13-digit numbers required by some stores as a prerequisite for trading. These unique numbers are used as location identifiers. These can be obtained through GS1 and some alternative suppliers.

 GS1, also known as Global Standards One, is responsible for creating and enforcing barcode standards worldwide. You can purchase barcodes through them, but usually, you need to pay a joining fee upfront, as well as annual membership fees.

GTINs are Global Trade Identification Numbers. These refer to any barcode numbers used in retail as part of the GS1 system. These could be GTIN-13’s (or EAN-13’s), GTIN-12’s (UPC-A) or GTIN-14 (ITF-14).

 International Standard Book Number Barcodes are the barcodes used on books. These start with 978 or 979 and are produced as barcodes using EAN-13 symbology usually with the text above.

 International Standard Book Numbers are 13-digit numbers beginning with a 978 or 979 that are used on books.

 International Standard Serial Number Barcodes are 13-digit barcodes that have been converted from an 8-digit ISSN Number. This 13-digit code is encoded using EAN-13 symbology in a barcode that is used on magazines and other periodicals.

 An International Standard Serial Number is an 8-digit number supplied to creators of magazines and periodicals which can be converted into a 13-digit magazine barcode.

 ITF-14’s or Interleaved Two of Five’s are barcodes created from an EAN-13 number (by adding an additional leading digit) to be used on the cartons of the EAN-13 barcode’s product. These are large barcodes printed on boxes of 6 or 12 of an item to be used only for stock tracking purposes and not for retail selling.

 Also known as 2D Barcodes, these barcodes encode information both vertically and horizontally unlike the traditional 1D barcodes. These are capable of encoding much more information than normal barcodes. QR Codes are the most common type.

 A dotted 2D Barcode used by some postage services. While it can only encode small amounts of information, a central bulls-eye allows it to be scanned even when a parcel is moving quickly.

 A method of encoding sets of numbers (0-9) that can be read by a barcode scanner. Every number represented in the parity requires a distinct combination of black and white spaces within the barcodes. Furthermore, each parity used to encode one barcode number must differ entirely from all other parities employed in the barcode symbology.

 A type of 2D Barcode used for identification cards and e-tickets. These are often used by transport providers.

 Quick Response codes are the most common kind of 2D Barcode. First developed for Toyota, these codes are now used worldwide to encode a large variety of other information. They are primarily used to automatically link smartphones to URL addresses when scanned.

Barcode regulations require ‘Quiet Zones’. These are the white spaces on either side of the bars. These need to be a specific size for the barcode to scan correctly and meet the approved specifications. Sometimes a ‘>’ is used to indicate how big the quiet zone should be.

 Specifications refer to the dimensions that the barcode is required to be on a product in order to be officially accepted. Stores have different levels of tolerance for barcodes that don’t fit these specifications. Smaller stores don’t tend to mind so much.

 Serial Shipping Container Codes are 18-digit barcodes (with an additional 2-digit application identifier) used on pallets going into large retail stores. Each pallet requires a different SSCC code.

 Symbology is the type of Barcode or the way that the barcode is encoded. This word is sometimes interchanged with the format. The symbology is a combination of the parities used and in what order these are used.

 Universal Product Code – A type of retail barcode used predominantly in the USA (although theoretically accepted worldwide). These 12-digit numbers are encoded in UPC-A Symbology. These are effectively a subset of EAN-13 numbers.

 A text format used to encode calendar events into a QR Code so that when it is scanned the phone will automatically add the event to the cell phone’s calendar.

 A text format used to encode contact information into a QR code so that when it is scanned the phone will automatically add the contact information into the cell phone’s contacts.

 Some barcode sellers and GS1 offer to test scan the barcode as it will appear on the product to determine how it is likely to scan in various environments before printing it. This service is occasionally demanded by large retailers, but it is commonly not necessary. The barcode must follow barcode specifications to pass.