Begin with a defined context, baseline and consequence of failure.
A proposed use case could identify the task, user, expected benefit, data authority, operating limits and decisions that must remain with people. Testing could examine performance, uncertainty, physical safety, edge cases, drift, cyber risk and recovery.
Simulation would remain a model until confirmed against reliable physical or operational evidence. A live connected digital twin would not be claimed without the system, data and validation needed to support that term.
