Diverse technical applications utilize digital twins. However, the term “digital twin” encompasses a wide spectrum of meanings, often lacking clarity regarding its specific attributes, and what parts of the real system it represents. This whitepaper from the author Prof. Dr. habil. Michael Schreiner proposes a classification of digital twins based on two criteria: the type of communication between the digital twin and reality, and the simulation speed at which the digital twin mirrors reality. This classification is supported by numerous practical examples illustrating the classification.
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