The EPCglobal Network and the GDSN
The GDSN responds to the business need for reliable STATIC INFORMATION (defined as Who owns the item and What the item is) among trading partners to support business processes related to collaborative trading. The EPCglobal Network responds to the business need for DYNAMIC INFORMATION (defined as Where the item is in the network and When will it arrive at its destination) about individual items as they move through the supply chain in order to support business processes related to supply chain visibility. As with all solutions in the GS1 portfolio, the GDSN and the EPCglobal Network are built on the strong foundation of the GS1 System and reflect the overarching vision of GS1 to provide compatible, standards-based solutions for resolving distinct business needs, as well as complementary solutions for companies seeking a comprehensive approach to sophisticated collaborative commerce.

Related Links:
EPCglobal US website
The EPCglobal Network and The GDSN Position Paper