The system files in eva/3 Application Builder are project global settings in an eva/3 project. The root of the eva/3 specific project settings are contained in the System.eva3 file. In the System.eva3 file links to further (required) system files are set.
F.e: The file System.forms is required for editing forms. But the file System.user might be deleted, when the eva/3 user management is not used.
Developing eva/3 Applications
eva/3 Project Properties
System.forms
System.reports
eva/3 builder
User Settings for the Form and Report Editor
User Settings for the SQL Editor
User Settings for the Table Editor
Eclipse Start Parameter