1 Answers
The Universal Product Code is a barcode symbology that is widely used worldwide for tracking trade items in stores.
UPC consists of 12 digits that are uniquely assigned to each trade item. Along with the related International Article Number barcode, the UPC is the barcode mainly used for scanning of trade items at the point of sale, per the specifications of the international GS1 organisation. UPC data structures are a component of Global Trade Item Numbers and follow the global GS1 specification, which is based on international standards. But some retailers do not use the GS1 system. On the other hand, some retailers use the EAN/UPC barcode symbology, but without using a GTIN.
Research indicates that the adoption and diffusion of the UPC stimulated innovation and contributed to the growth of international retail supply chains.