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In this paper we discuss the problem of migration from the PLC control to the event-driven and component based architecture of IEC 61499 function blocks. We are using a conveyor system to illustrate three different migration methods: object-oriented in basic function block, object-oriented in composite function block and class-oriented in basic function block. The advantages and limitations are summarized and guideline for migration is provided.

Integrating RFID data into an enterprise application has been a challenge to RFID adoption, especially for small to medium enterprises. So far RFID middleware has been used to bridge RFID readers and enterprise applications. As middleware and enterprise application are usually deployed using different platform, it proved to be complicated and costly to realize real-time integration. This paper proposes an event-driven business process management approach that unifies RFID event processing and business event processing. The approach exploits event driven architecture to efficiently manage the event data, and also to provide one single extensible platform for enterprises to extend that functional capability. It fully complies with service oriented architecture by leveraging the loose-coupling and vertical integration capability.