# A Scoping Review on Virtual Reality-Based Industrial Training
## 4 Discussion
### VR Challenges  
VR has ceased to be a project for the future to become a reality to which we are trying to adapt. Most of the world's major industries have begun to compete in this area, with a clear inclination to become fully accustomed to the fourth industrial revolution.  
From improving customer service or workplace safety to accelerating product development, there is a multitude of efficient applications. There will be a larger allocation of funds to this sector in order to develop and implement hardware solutions, i.e., adapt equipment and infrastructures to perform more efficient processes [71].  
The digital transformation process is crucial in the industry, as it will have to adapt to the demands of consumers who will necessitate quality products, responsibly manufactured, personalized, and integrated into a digital whole. In addition, all of this will be delivered more comfortably and in less time. The entire production chain will be affected by this tool in the next decade [72].  
VR will find its space in the test of new configurations of the production chain, shortening and speeding up the startup of new assembly lines and even entire factories, working directly on its virtual model. In this way, the correct operation of all production systems will be ensured before starting them up, thus avoiding production delays, planning errors, and the inefficient scheduling of automated systems.  
Rapid growth will come due to innovations from leading technology giants, with advancements in software and hardware. Besides, the sale of devices such as VR glasses, haptic controls, and tablets or cell phones with more powerful graphic processors, will put companies, like Samsung, Sony, Microsoft, HTC, among others, in a fight of interest [73; 74].  
In order to confront this imminent digital transformation, the information technology structures will also have to evolve. Cases of virtual applications, such as Pokemon Go, have shown that the massive demand for connectivity, within this type of digital tools, can result in connection failures. As a solution to this inconvenience, 5G technology has emerged, which has been in testing processes since 2019 and whose results have announced an improvement in mobile broadband, an efficient transmission time of information packets, and a much more satisfying user experience.  
Another challenge facing the virtual technology industry focuses on the need to defend against cyberattacks. Even though the Industrial Internet of Things (IIoT) devices are known to provide many benefits, they have suffered countless malware incidents, which causes a loss of confidential information and vulnerability.  
Finally, it can be mentioned that the future of VR will be linked to the production of new virtual reality formats. Furthermore, the resolution on the screens should be increased, the graphic processing capacity should be significantly improved, and developers will have to create specific software [75].  
VR is emerging as a promising technology within industrial digitization. It can also be confirmed that the areas of most significant application and interest will continue to be education, entertainment, training, art, and medicine. Space exploration is another field with a successful and essential future. Here, digital tools will be used for several projects that can range from developing scenarios in order to improve astronauts' capabilities to create environments in which significant decisions must be made under dangerous circumstances.