Value Stream Mapping is a lean-management technique used to analyze and visualize the flow of materials and information required to bring a product from supplier to customer. It highlights value-added and non-value-added activities across the supply chain, helping identify inefficiencies, bottlenecks, and waste. In inventory optimization, VSM helps organizations pinpoint areas where inventory accumulates unnecessarily and design process improvements that reduce lead times and improve inventory turnover. By focusing on value creation, companies can streamline supply chain operations and enhance customer satisfaction.