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Security barriers in a British Sainsbury's shop require customers to scan receipts before being allowed to leave the premises. Failure to scan all items is a form of shoplifting . This can happen innocently when a customer scans only one item of a "buy one, get one free" promotion, or deliberately by a customer at a self-checkout.
When a product is in a warehouse or store, it can be tracked via its barcode and/or other tracking criteria, such as serial number, lot number or revision number.Systems for Business, Encyclopedia of Business, 2nd ed. Nowadays, inventory management software often utilizes barcode, radio-frequency identification (RFID), and/or wireless tracking technology.
Scan-based trading (SBT) is the process by which suppliers maintain ownership of inventory within retailers' warehouses or stores until items are scanned at the point of sale. Suppliers, such as manufacturers or farmers, own the product until it is purchased by the customer, with the store or venue then buying the product from the supplier and ...
An EPC RFID tag used by Walmart [citation needed] Sewn-in RFID label in garment manufactured by the French sports supplier Decathlon. Front, back, and transparency scan. RFID provides a way for organizations to identify and manage stock, tools and equipment (asset tracking), etc. without manual data entry. Manufactured products such as ...
All three systems are based on neutron interactions with the inspected items and examining the resultant gamma rays to determine the elements being radiated. TNA uses thermal neutron capture to generate the gamma rays. FNA and PFNA use fast neutron scattering to generate the gamma rays. Additionally, PFNA uses a pulsed collimated neutron beam.
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[citation needed] Today, point of sale systems scan the barcode (usually EAN or UPC) for each item, retrieve the price from a database, calculate deductions for items on sale (or, in British retail terminology, "special offer", "multibuy" or "buy one, get one free"), calculate the sales tax or VAT, calculate differential rates for preferred ...