## 2 Theoretical Background
### Immersive Technology Applications for Advanced Cultural Experience
Creating accessible design for both disabled and non-disabled users can highlight challenges and tensions, influencing SMEs' attitudes in accessible design [37]. Another compelling example is a VR application designed to facilitate virtual visits to the Cancho Roano archaeological site in Spain [38]. This immersive solution was specifically developed to accommodate wheelchair users, allowing them to explore the site without the physical constraints typically present in such environments. The system integrates a VR headset with a motion simulator and a haptic interface, enabling users to experience tactile sensations, such as variations in ground texture and surface inclinations beneath their wheelchair. This combination enhances realism, providing a more engaging and authentic experience that replicates the physical sensations of navigating the site in person. Additionally, immersive technologies have also been increasingly adopted for the long-term management and preservation of CH sites. These advancements allow experts to digitize, monitor, and analyze heritage structures more efficiently, ensuring their conservation while improving accessibility to critical data. [PERSON] et al. [39] introduced an MR-based methodology for heritage inspection and digital documentation. Through the use of specific devices, inspectors can access a virtual representation of a CH site, enabling them to retrieve or update technical details, such as previous assessment reports, structural measurements, or newly collected data. This system integrates standardized protocols for documentation, classification, and risk assessment, offering an objective and data-driven approach to evaluating the condition of heritage assets. Such a method not only enhances conservation efforts but also enables more effective intervention planning by streamlining the information retrieval process. Similarly, [PERSON] et al. [40] developed a framework for handling large-scale 3D point cloud data, applying it to significant historical structures, such as the Temple of Neptune in Paestum, Milan Cathedral, and Bologna's porticoes. Using a head-mounted display, users can explore high-resolution digital models of entire buildings or zoom in on intricate architectural details. This capability serves multiple purposes: it enhances the visitor experience by allowing virtual exploration with information hotspots and interactive content while also supporting conservation efforts by facilitating close-up inspections without physical intervention. The integration of these digital tools not only modernizes the management of CH sites but also contributes to their sustainable preservation. By reducing the need for direct human contact with fragile structures and enabling remote analysis, MR and 3D visualization technologies offer invaluable solutions for maintaining heritage sites while simultaneously enriching public engagement and educational opportunities. These studies demonstrate the versatility of XR technologies in both indoor and outdoor CH sites, underlining their potential to create immersive, educational, and engaging cultural experiences through real-time interaction, enhanced digital content delivery, providing an alternative way to enjoy cultural value, such as through gamification, storytelling, and immersion [12; 41].