GTIN TECH

GTIN refers to a ‘Global Trade Identification Number' represented by either and UPC, EAN or ISBN formatted barcode numbers. GTINs are utilised by businesses of all types globally to track the pricing and inventory of retail items in a supply chain... UPC or Universal Product Code is the universally accepted retail barcode used predominantly in the United States and Canada. A UPC barcode contains 12 digits represented through digits 0-9 only, along with quiet zones on either side of the code and start, middle, and stop symbols. The middle symbol separates the differently coded left and right sides. When a digit is used on the left side, the bars are black and with white spaces and when used on the right side the black and white are inverted. The logical reasoning for this is complex involving a mathematical formula called "parity," however the aim is to reverse black and white allowing the scanner to determine if it's reading the code in the correct orientation i.e. right to left or in..