RFID Tracking Glossary

A QR code is a two-dimensional, optically readable matrix code used to mark products, packaging, documents or components. It stores information such as identification numbers, serial numbers or URLs in a compact graphic structure. It is captured with a camera-based device or a dedicated code scanner that requires direct line of sight. Unlike one-dimensional codes, it can hold more data in a small area and often remains readable even when partly dirty or damaged. In industrial environments, QR codes provide identification data, serial numbers or references to digital content directly on the object and support fast access to digital systems such as databases, production orders or maintenance information. For data capture, direct line of sight is always required, so objects are usually read individually within the process.