The global standards organisation, GS1, has produced a guide for retailers and suppliers about how to implement RFID and Electronic Product Codes (EPCs). The Guide also discusses the use of EPCglobal standards, and in particular, EPC Infomation Services (EPCIS)
The Guide, which was produced with the backing of companies such as Carrefour in France, Henkel, Metro and Rewe in Germany, and key manufacturers Kraft, Procter & Gamble and Nestle, can be found here
It is also the subject of an RFID Journal blog post