Wal-Mart has achieved tremendous success through efficient supply chain management practices such as centralized distribution, direct procurement from manufacturers, efficient logistics networks, and inventory tracking technologies. It pioneered the hub-and-spoke distribution model and invested heavily in IT systems for inventory tracking, order management, and collaboration with suppliers. While initiatives like CPFR and RFID implementation aimed to further reduce costs, they also imposed significant investment requirements on Wal-Mart's business partners.