IIoT (Industrial Internet of Things)
Industrial Internet of Things (IIoT) refers to sensors, actuators, and connected devices deployed on manufacturing equipment, production lines, and field-deployed products that collect and transmit operational data in real time. IIoT is the data feed that keeps digital twins synchronized: without sensors reporting that a bearing is vibrating, a spindle is hot, or a part failed, the twin is just a static model. IIoT data is also a feedback loop that closes the digital thread: field performance data flows back from deployed units to inform engineering changes.
Why it matters
IIoT is the bridge between the digital thread (the data architecture) and the digital twin (the live instance). A thread without IIoT is a historical record only; a thread with IIoT becomes a real-time feedback loop that allows engineering and operations to see exactly how products are performing in the field and respond to trends before they become field failures. The challenge is connecting IIoT data to the structured product data in the thread — sensors generate telemetry, but that telemetry needs to be traced back to the as-built configuration and the original BOM to be actionable.
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Cite this definition
Finocchiaro, Michael. “IIoT (Industrial Internet of Things).” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/iiot-industrial-internet-of-things