OPC Unified Architecture (OPC UA) is vital for "Industry 4.0", providing a unified platform for industrial communication from sensor to cloud. A key feature is its robust information modeling framework that enables semantic models. New research explores synergies between OPC UA and Semantic Web technologies, combining them with AI paradigms. This paper reviews current contributions and future research directions, highlighting the potential of AI techniques like machine reasoning to develop highly automated, dynamic production processes.

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