The Actian OpenROAD toolset supports an n-tier architecture; you can use an Ingres or MS SQL Server database.  It is also possible to use an Oracle database. The architecture ensures minimal network traffic.  The application logic is executed on an Application Server that ensures high performance levels are achieved.

The presentation layer is a thin client that handles the instructions regarding the interface e.g. to select an employee, to check that all mandatory details have been entered, or to display a message if an incorrect value has been entered.