A resource tracking system for loosely coupled networks may utilize tags for tracking across multiple proprietary asset management systems. A shipment may be assigned a unique identifier, which is associated with any tags for that shipment. The tags may be from any entity in a supply chain and the tagged information may be available over a network for real-time tracking at any point in a supply chain.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
 This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.