We use many types of bar codes in our everyday life. Nearly everything we buy has a UPC code printed on it. The CrackBerry app store features QR codes in the description for every app. Magazines and ...

A consumer just scans the code already on the package, and the application provides product related information. The application now serves as an assistant to consumers doing product research in-store ...

The first modern barcode was scanned 50 years ago this summer—on a 10-pack of chewing gum in a grocery store in Troy, Ohio. Fifty is ancient for most technologies, but barcodes are still going strong.

Bucklin, Randolph E., and Sunil Gupta. "Commercial Use of UPC Scanner Data: Industry and Academic Perspectives." Marketing Science 18, no. 3 (1999): 247–273.