Extended Reality (XR) Toward Building Immersive Solutions: The Key to Unlocking Industry 4.0

When developing XR applications for Industry 4.0, it is important to consider the integration of visual displays, hardware components, and multimodal interaction techniques that are compatible with the entire system. The potential use of multimodal interactions in industrial applications has been recognized as a significant factor in enhancing humans' ability to perform tasks and make informed decisions. To offer a comprehensive analysis of the current advancements in industrial XR, this review presents a structured tutorial that provides answers to the following research questions: (R.Q.1) What are the similarities and differences between XR technologies, including augmented reality (AR), mixed reality (MR), Augmented Virtuality (AV), and virtual reality (VR) under Industry 4.0 consideration? (R.Q.2) What types of visual displays and hardware devices are needed to present XR for Industry 4.0? (R.Q.3) How did the multimodal interaction in XR perceive and relate to Industry 4.0? (R.Q.4) How have modern adaptations of XR technologies dealt with the theme of Industry 4.0? (R.Q.5) How can XR technologies in Industry 4.0 develop their services and usages to be more solution-inclusive? This review showcases various instances that demonstrate XR's potential to transform how humans interact with the physical world in Industry 4.0. These advancements can increase productivity, reduce costs, and enhance safety.