A Domain can have one or more project files. Each .prj file contains object definitions, Tags, Screens, Historics, Alarms, and bitmaps, among others. The organization of objects inside a .prj file is free. Several Folder levels can be created inside a project, and each Folder can contain any type of object. Users can split objects from a supervisory system into two or more .prj files, depending on their needs. At run time, each project can be activated, regardless of the other ones, even in different servers.