
Before calling a model a digital twin, ask how it stays connected to reality
A detailed digital model may be useful without representing current conditions.
Digital representations connected to physical assets, examining model assumptions, update frequency and practical operational use.

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Digital twins connect a representation with a physical asset or process for a defined purpose. This section examines the information relationship: what is represented, how it is updated and which decisions it supports. Model detail, stale data, validation and ongoing ownership are explored without assuming that visual realism establishes operational accuracy.
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A detailed digital model may be useful without representing current conditions.

A digital twin should be assessed as a maintained relationship between a physical system and a digital representation.