The Barcode Is Not a Price Tag
A sharp teardown of why a retail barcode is not a price tag, but a product identifier that lets checkout, inventory, suppliers, and shelf operations coordinate through one scan.
A checkout scan looks like a price lookup, but the barcode is really carrying a product identifier. The price, inventory change, receipt line, and reorder signal come from the retail systems behind the scan.
Sources
- GS1 US: What is a GTIN? - used for the GTIN definition, barcode/data-carrier distinction, and POS database price lookup behavior.
- Smithsonian Institution: Supermarket Scanner - used for the first supermarket-scanner context and the database-matching mechanism.
- GS1: Retail - used for retail and supply-chain barcode context.
Visual material: Pexels retail and package-handling footage credited in the production audit.
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