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Design aspects of the OPC unified architecture

OPC Unified Architecture is the most recent OPC specification from the OPC Foundation and differs significantly from its predecessors. The OPC Foundation's main goals with his development was to provide a path forward from the original OPC communications model (COM/DCOM) to a current communications model (SOA) and introduce a cross platform architecture for process control, while enhancing security and providing an information model.

service oriented architecture; ole for process control; opc unified architecture; industrial web services

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