In the stores,Wal-Mart’s legendary inventory management capability is driven is driven by is advanced Texlon barcode system. In addition to tracking the sale price, inventory levels of each product,and a history of quantities sold, Texlon can record trend and predict future needs. Quantities sold can be traced to specific weeks,days, or even hours of each day. Seasonal projections can be documented, and shopping habits are noted. Information is sent daily at midnight to the warehouses, so depleted products are restocked the following night.Reliance on this kind of technology to drive the supply chain enables Wal-Mart’s suppliers to use “pull production” instead of “push production.” The barcode system will eventually be replaced by an RFID-based system,technology Wal-Mart is driving.