Models virtual replicas of physical systems (factories, supply chains, infrastructure) to simulate real-world operations and define predictive maintenance schedules. Generates digital twin specifications, sensor mapping requirements, and simulation parameters for operational planning. Trigger on queries about digital twins, virtual replicas, predictive maintenance planning, simulation models, sensor mapping, and operational simulation. Do NOT trigger on general IoT device management, dashboard design, data visualization, supply chain analytics without simulation context, or hardware procurement.