ABAP programs that are generating outputs or reports use selection screens for simple inputs. For full-fledged, multiple screen data input and data capturing, the ABAP Workbench provides a screen painter with drag and drop and all the other facilities associated with creating input screens and programs in a graphical environment.
You have used some forms of the selection screen statement PARAMETERS in your hands-on exercises. You used it in the program demonstrating the COLLECT statement to input the company code for which the customer wise sales summary report was to be generated.
In enterprise environments, the output ...