An electronic product code (EPC) is a universal identifier that gives a unique identity to a specific physical object. This identity is designed to be unique among all physical objects and all categories of physical objects in the world. The point of user profile disks (UPD) is that user and application data are stored as a separate VHDX disk on a dedicated file on the network shared folder. This virtual disk is mounted to the user session as soon as the user signs in to the RDS server and unmounted when he logs out. The data EPC diagram also shows how data refreshes every 60 seconds and how there are several back-end processing mechanisms.
