barcodeformat

Barcode format refers to the specific symbology used to encode data in a barcode, including the arrangement of lines or modules and the rules for data encoding, error detection, and layout. Barcode formats are broadly divided into one-dimensional (1D) barcodes and two-dimensional (2D) codes. The choice of format affects data capacity, scanning reliability, and the robustness of the code to damage or distortion.

In software and data processing, BarcodeFormat is a common term for an enumeration that lists the supported barcode types. The format informs the encoding and decoding logic, enabling generators and scanners to apply the correct rules for a given symbol and to validate the data contained in the code.

Common barcode formats include 1D types such as UPC-A, UPC-E, EAN-8, EAN-13, Code 39, Code 93, Code 128, and Interleaved 2 of 5; and 2D types such as QR Code, Data Matrix, PDF417, and Aztec. Retail applications frequently rely on EAN/UPC codes, while QR codes are widely used for mobile linking and information sharing. Data Matrix is prevalent in small items and electronics, and PDF417 is used in identification documents and boarding passes.

Standards bodies such as GS1 define many retail and logistics barcodes, whereas ISO/IEC publishes requirements for 2D codes like QR Code (ISO/IEC 18004) and Data Matrix (ISO/IEC 16022). Practical considerations for scanning include maintaining adequate quiet zones, sufficient contrast, proper print quality, and ensuring the chosen format is supported by the scanning hardware and software.