Discovery Services Interconnection

This paper presents and discusses various solutions for the cooperation of several components implementing Discovery Services (DS) in the EPCglobal architecture. This architecture aims to collect and store events involving objects tagged with a Electronic Product Code (EPC) that can be accessed using the RFID technology. Each event is stored in a repository with a standardized interface specification: the EPC Information Services. The DS components are used by the application layer in order to retrieve which repositories store events about a given code. If this is not a problem for a centralized network, it is still an open question for a decentralized architecture. Security and access controls concerns are also taken into account.