Abstract
With the advent of the 4th industrial revolution, digital twin technology is in the spotlight. Cases of digital twin creation based on the latest information and communication technologies are being actively reported by advanced countries and global companies. However, sometimes the unclear definition of digital twin confuses readers. Kritzinger et al. classified terms and concepts into Digital Model (DM), Digital Shadow (DS), and Digital Twin (DT) depending on whether the data flow between the physical entity and the digital entity is automatic or manual. This paper examines Korean papers searched for digital twin and manufacturing keywords in Google Scholar for 3 years and analyzes them by dividing the level of building digital twin by DM, DS, and DT. Based on the results, this paper discusses the direction of digital twin creation.
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