A QR (Quick Response) code is a type of two-dimensional barcode that can store a large amount of data, such as item details, location information, or links to digital content. QR codes are designed to be quickly and easily scanned using a smartphone or other device with a camera and the appropriate scanning app. In the context of tool and equipment management, QR codes can be used to identify and track assets, access detailed information about them, or initiate actions like tool checkout or transfer. The versatility and ease of use of QR codes make them a valuable tool for enhancing the efficiency and effectiveness of asset management systems.