An Auto-ID infrastructure will include products with RFID tags on them, one or more RFID readers, and one or more Savant servers. Savant's are connected to the RFID readers and act as a data smoothing and event reporting engine which reports only significant product movement events up to either to higher level Savants or to other enterprise applications. There are 4 basic technologies which make up the Auto-ID Infrastructure: eTags: Electronic Tags - Very small and inexpensive multi-frequency RFID tags. Savant: Savant servers filter and store the the EPC data coming from readers. ONS: Object Naming System - global system for rapidly converting EPC's into addresses of PML servers. PML: Physical Mark-up Language - XML vocabulary for describing the physical characteristics of manufactured products.