**2.3 Globally shared systems**

Sharing virtual environments with global access is mainly based on the resources of the internet and web technologies. According to Du et al. [22], by sharing globally available collaborative environments, it is possible to reach a large group of users for remote collaboration. This, of course, is also expanding the gaming business.

Global collaborative virtual environments use the computer network infrastructure (**Figure 4**). The users/players can interact with each other via this infrastructure. Instead of local physical space, globally shared space is used. Each user/player is able to access this space via a separate computing system [23]. Users/players connect to the server node via the network infrastructure, within which they communicate and interact with other users/players or game environments in real time [24]. Independence from the physical space of the user/player is the main advantage of these environments.

Globally shared environments are highly efficient in terms of sharing large-scale users/players activity as well as multipurpose deployments [9]. The most common problem in global virtual environment sharing is platform independence [25]. It is as a result of globalization that the demand for multiplatform compatibility is growing,

**Figure 4.** *Globally shared environment (LIRKIS DCI FEEI TU Košice).*

which clearly needs to solve the availability of such environments for multiple and also different user devices and systems. As the development of new XR technologies grows rapidly, it is necessary to ensure the adaptability of systems and user interfaces so that they are able to handle new technological innovations. Optimization of data sharing is also most needed, as the problem of latency between users increases in the case of a global connection. Solving these problems can positively contribute to the expansion of virtual collaboration for any purpose.
