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In this paper, an RFID architecture has been presented where the traditional role of the localised middleware has been distributed to the RFID reader and a cloud based web service supported by a web based user interface, eliminating the role of the former. Such an interface allows a user to control and carry out all of the major RFID related operations in a typical supply chain based situation remotely. Load testing was carried out to test the processing capability of the RFID reader based Reader Resident Application and the Reader Web Service for both large scale tag traffic and large scale event generation and processing. Different schemes were proposed for small and large scale event processing. These results are presented to demonstrate the applicability of this architecture for multiple RFID based operations.