ACS-SASSI Main was a user interface for SASSI version 1 & 2. Main had a few purposes

1. Create Model Database(s)
2. Organize the Modulesand file extensions
3. Allow the user to launch modules from a graphical user interface

As of version 3.0.0 Main is no longer in the ACS-SASSI installer. The functionality of main has been implemented in the Submodeler.