Fast-selling items can be identified quickly and automatically reordered to meet consumer demand. Slow-selling items can be identified, preventing a build-up of unwanted stock. Historical data can be used to predict seasonal fluctuations very accurately. Items may be repriced on the shelf to reflect both sale prices and price increases. In point-of-sale management, the use of barcodes can provide very detailed up-to-date information on key aspects of the business, enabling decisions to be made much more quickly and with more confidence. Besides sales and inventory tracking, barcodes are very useful in shipping/receiving/tracking.