The '''Global Data Synchronization Network''' (GDSN) is an internet-based, interconnected network of interoperable data pools governed by [[GS1]] standards. The GDSN enables companies around the globe to exchange standardized product [[master data]] with their trading partners.
The GDSN is used as a tool to support high data quality through use of authoritative data sources, real-time data synchronization, and standardization of data formatting.
The GDSN operates using a [[publish-subscribe pattern]] between two trading partners, each of which are registered with and access the GDSN via a [[Global Data Synchronization Network#Data pool|data pool]]. The GS1 Global Registry acts as a directory to point to the data pool where data is housed, and matches subscription to registrations in order to facilitate synchronization.<ref>{{Cite web |url=https://www.gs1us.org/DesktopModules/Bring2mind/DMX/Download.aspx?Command=Core_Download&EntryId=569&language=en-US&PortalId=0&TabId=134 |title=GS1: Foodservice: Getting Started with the GS1 Global Data Synchronization Network |access-date=2020-03-05}}</ref>
