Implementing EPCIS with DEPCAS RFID Middleware

RFID middleware is a new breed of software acquisition system that allows transfer data between device readers and business applications. RFID middleware has been structured in facto with several layers: infrastructure layer, event processor, tag data translator, rules and composite process, and application integration or EPCIS. EPCIS term is a generalization to refer the upper layer that link RFID middleware with external systems like SCMs, ERPs, WMSs or any user application that use auto identification data. In this paper we want to present the EPCIS DEPCAS layer. DEPCAS (Data EPC Acquisition System) is a RFID middleware proposal based on an extension of control and data acquisition systems (SCADAs). We examine the elements that compound EPCIS in DEPCAS based on SOA (Service-Oriented Architecture) and publish/subscribe message technologies implemented with JMS (Java Message Service). EPCIS in DEPCAS solves the two-way communication: it receives the configuration back-end information to increase the RFID semantic process defined with scenarios and offers the services to exploit the RFID acquisition results.