This view of directories (red cubes) and files (orange tetrahedrons) shows both the file structure (green lines) and the links (purple lines).
Since Imagix 4D knows the contents of the source files, you can explore where classes, functions and variables are located by simply entering the program element's name. Other graphical queries can show you which files have been changing, which are the larger and more complex files, and how thoroughly each file has been tested. 