Originally Posted by archiduc
So what does a Bar Code tell you?
As far as I know it's a means of keeping up with inventory and pricing. An item is entered into inventory with the purchasing price, retail price, and for wine with the varietal, maker, region, and vintage. Other items may have a "grown in" location, etc. The bar code is then scanned into the proper field. When you scan the bar code it reads the price and then reflects in the inventory...negatively for a sale and positively for a return.
Other than that I don't know that it does anything.