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Glossary of Bar Code Terms |
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Access Point - A radio device which wires into a Wired LAN and communicates between a RFLAN and the Wired LAN. Accuracy - The determination of whether any element width or inter-character gap width (if applicable) differs from its nominal width by more than the printing tolerance. ADC - Automated Data Collection or Automated Data Capture refers to all technologies that automate the process of data collection without the use of a keyboard, including bar code, magnetic stripe, (OCR) optical card reader, voice recognition, smart card or (RFID) radio frequency identification. ADC provides a quick, accurate and cost-effective way to collect and enter data. Adhesive - 1) A substance (cement, glue, gum) capable of holding materials together by surface contact. 2) The portion of a pressure sensitive label which allows the label to cling to its intended surface. Addressable Imaging Resolution - The maximum number of image positions along a straight line one inch in length that can be addressed by the designer. This resolution would exclude further resolution-enhancing techniques performed by the imaging device or software that are beyond the control of the designer. AIAG - Automotive Industry Action Group is a trade association responsible for creating automotive industry standards pertaining to bar code symbology and common label formats. AIM - Automatic Identification Manufacturers, Inc. is a U.S. trade association headquartered in Pittsburgh, PA who represent the manufacturers of automatic identification systems. Alignment - In an automatic identification system (Auto ID), the relative position and orientation of a scanner to the symbol. Alphanumeric - A character set consisting of letters, numbers and usually other characters such as special symbols. American National Standard (ANS) - Designation conferred by the American National Standards Institute (ANSI) upon standards submitted by ANSI-accredited Standards Development Organizations (SDO). The ANS designation is awarded after the opportunity for public review and comment, and a certification by the SDO that due process was followed in the development of the standard. ANSI - American National Standards Institute is a non-governmental organization responsible for the development of voluntary bar code quality standards. Bar code printing standards and the readability of bar code symbols are determined and classified into grades from A to F, in order to provide an overall symbol quality test. Aperture - The opening on an optical system (scanner) that establishes the field of view. Application -The particular use the label, tag or ticket will serve once the barcode, text or graphic image is applied. Application Advice (824) - An EDI transaction set that is used to notify a sender of information about application errors generated in the receivers' application system. Application Identifier (AI) - A two-, three- or four-digit prefix used within UCC/EAN-128 symbols to define the meaning of information that follows. Application Temperature -The temperature at the time the label is applied. ASCII - American Standard Code For Information Interchange was developed by the International Standards Organization (ISO) and is a widely used code for data communications. Each character is represented by a seven bit or eight bit structure providing 128 character combinations or 256 character combinations. Aspect Ratio - In a bar code symbol, the ratio of bar height to symbol length. Asynchronous - The arrangement in a data communication system whereby every character to be printed is sent independently (framed) and there is no associated clock. Asset-Tracking - A simple bar code system that gives a company the ability to consistently locate each asset. Authentication - A mechanism that allows the receiver of an electronic transmission to verify the sender and the integrity of the content of the transmission through the use of an electronic "key" or algorithm, which is shared by the trading partners. This is sometimes referred to as an electronic signature. Auto Discrimination - The ability of bar code equipment to recognize and correctly decode more than one symbology. Auto Distinguish - The ability of a scanner to recognize a selectable number of different symbologies and process the data without operator intervention. This is a prerequisite feature of linear bar code scanners employed in open systems. Auto ID - A term used to describe the process of automatic data collection and identification occurring in "real-time".
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