Method and apparatus for tracking customer purchasing habits

摘要: A processor, bar code scanner, and a smart card interface at checkout stand track customer purchase habits. The includes memory storing accumulated values in each of several profit categories second processor for executing instructions. first transfers data to from the card. card, while coupled stored category containing different margin ranges processor. responds scanner retrieve purchased product carrying read by scanner. adds retrieved transferred that is same as product. compares resultant sum with predetermined value determine if purchaser receive reward. increments an amount relation customer's information incremented