## 5 Main Functionalities (Tested and Validated)  
The ArchTerr scientific research project has multiple outcomes, of which several are referenced here. The functionalities described below are based on the interactive digital map interacting with two databases, for archeological data and for GIS-based coordinates. A more detailed presentation can be found in [1]. 1. Real-time bidirectional translation and, on the map, simultaneous representation of the data of different coordinate systems. This approach has the benefit of avoiding both human-error prone intervention and the use of intermediate transformations (using external conversion tools). The end user can select the geographical coordinates system (Figure 14), and the software application automatically translates the latitude/longitudinal coordinates in the X/Y system. The conversion of the internal coordinates between Stereo70 and WGS84 geospatial systems is performed prior to map representation. 2. The verification of the correctness of the WGS84 or Stereo70 coordinates translated in real time and the archeological site position seen as a polygon on the digital map. 3. Inside an archeological site, multiple areas (such as site, protection area, and research area) can be marked differently, using polygons representing archeologically restricted access limits (Figure 15). Figure 13: The map server internal structure and functional interactions. The manager/supervisor can easily assess the status of each site because they are colored differently based on their validation status (Figure 16). Archeological sites are represented as follows: the sites before requesting validation (are represented using blue color), the sites who are under review and pending decision for validation (are represented using orange color), the validated and publicly accessible sites (are represented using purple color). 4. Each user has different visual representations of the same GIS data and archeological information. This feature is implemented based on a user's permission matrix. Figure 14: WGS84 and Stereo70 coordinates converted for each archeological site area corner. Figure 15: Archeological site protected areas sent for validation (blue) and already validated (purple). The manager/supervisor has a different view (the possibility to validate or reject a site) compared to a regular archeologist, who just enters data (Figure 17). Figure 16: Archeological sites before requesting validation (blue), sites pending decision for validation (orange), and validated and publicly accessible sites (purple). Figure 17: Archeological sites during the validation process (orange) viewed by the application manager and validated sites (purple). 5. Each user, based on his permission level, can undertake an instantaneous visual comparison of overlapping areas (the archeological site and protected area vs. the terrain under investigation for a future investment) (Figure 18). The application detects the overlapping areas and issues a warning. 6. Any user access can easily access any archeological site information (for investments or city planning services) to facilitate information transparency. 7. The user-friendly interface simultaneously provides geospatial information and overlapping site-related information, such as descriptive text and identification. 8. To better support the archeologists and regular users, the application generates pdf-format documents containing context-based information relevant to the user's access level. 9. The web application enables instantaneous measurement of any distance on the map (Figure 19). The distance measurement can be performed on any shape, straight line, or broken line. 10. ArchTerr's interactive digital map product is implemented on a fully redundant cluster architecture in order to be used as a daily working tool by officials of the Ministry of Culture territorial branch offices, private investors, cadastral offices and real estate advertising agencies, city halls, etc.