Digital Twins in Industry 4.0.

The article discusses the concept of digital twins and their applications in Industry 4.0. Digital twin technology has become more advanced and widespread, driving the development of Industry 4.0. It is used in various sectors such as product design, predictive maintenance, and virtual reality applications. The article highlights different articles in a special issue that explore the potential applications of digital twins in sectors like construction, education, energy, manufacturing, and maritime. The article concludes by discussing the future research directions and challenges in implementing digital twin technology. [Extracted from the article]