## 4 An Application Case
### Public Service  
As shown in Figure 8a, the Metaverse public service is operating stably in the government software operating environment. The site name \"DMZ Universe\" is a combination of two keywords, DMZ and universe. The slogan \"My New Universe\" is to convey the meaning of returning the DMZ, which people are not easily allowed to visit, to the public  
Figure 7: Communication method. through the Metaverse. It has the meaning of creating one's own new universe (world) in the DMZ Metaverse space. As shown in Figure 8b, the logo of DMZ Universe is a design that utilizes the meaning of universe by using the shape of a planet. It has the meaning of social by shaping the planet in the shape of a speech bubble. It is not simply a web system, but it contains the meaning of a new world where there is interaction with users. In the first virtual space where users enter, there are three islands: Peace Island, Woori Island, and Sky Island, as shown in Figure 9. The buildings on each island are related to the DMZ or designed with the motif of Korean landmarks. The labels on the island are the sitemap of the DMZ Universe, and users enter the public functional space by clicking the space of each island or clicking the label. As shown in Figure 10a, the resource center is designed with the motif of _Cheomscongdae_, Korea's first astronomical observation facility. Each floor of _Cheomscongdae_ made of stone is rotating, and it is designed with the intention of delivering a paranormal appearance to the user. As shown in Figure 10b, DMZ-related humanities and scientific materials are provided in the internal space of the resource center. In particular, the users can visually check the DMZ vegetation, culture, and history through the 3D simulator. Figure 8: DMZ Universe (www.universe.go.kr accessed on 5 August 2022). Figure 9: Landing Page for virtual space. As shown in Figure 10(a), the DMZ survey space is designed with the motif of the Korean National Assembly building. Users can check the actual condition data of the DMZ that has been accumulated for decades in this space as if looking in an exhibition, as shown in Figure 10(b). The data is newly updated on the platform every quarter. As shown in Figure 11(a), there is a publicity screen connected to an external link on Woori Island. Websites related to the Ministry of Unification appear according to time, and by clicking on the screen, it is linked to a related page. When the user clicks the image of the Peace map on the display, as shown in Figure 11(b), it is also connected to the Peace map. The Peace map is a web map that provides a total of 12,000 pieces of information related to the DMZ. Information on the geographical topography, historical culture, ecological environment, and unification and peace of the North-South border area is included. The DMZ web map is created for the purpose of helping various educational sites, tourism, and policy establishment. Figure 11: DMZ Actual Condition Data. Figure 10: Resource Center. Users enter the event information space, as shown in Figure 13, through _Namdaemonon_, as shown in Figure 13. The event information space is designed with the motif of the House of Freedom in Panmunjom. It is a space where various events held by the Ministry of Unification are promoted, and users can apply for the events. The user can acquire various types of event information by walking around the event information space. In addition, a friendly interactive civil service via a chatbot is provided. Every year, information on major events, such as the Walk of Peace and the DMZ Peace Forum, is provided. As shown in Figure 14, Peace Station of the DMZ virtual experience is designed with the motif of Seoul Station. As shown in Figure 14, there are booths inside Peace Station that allow users to travel to various times and spaces, such as _Goseong_ in 2022, _Cherowon_ in 1930, and Paju in 1943.