The document describes a mobile application called "Shopping Helper" that allows users to scan product barcodes to view product information and prices. The application was submitted to a technology contest in 2008. It functions by allowing users to scan barcodes to access two databases that contain product information from various stores.

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Shopping Helper using Barcode with Mobile Application)
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4. http://www.thaigoodview.com/library/contest2551/tech04/22/standard/p04.html
http://www.vcharkarn.com/project/view/626
http://www.vcharkarn.com/project/view/665