USE:
SystemData Container of eCATT allows assigning systems on which your eCatt Test Configuration will be executed.
PROCEDURE:
Launch SECATT transaction.
Select System Data radio button.
Enter a name for your System Data.
Click on Create Object.
On the Attributes tab enter your System Data name as Title.
Switch to System Data tab.
Assign all remote systems ( with their RFC connections ) on which you would like to execute your Test Configurations. If you will only execute it locally, entry with system "NONE" is enough.
Save your System Data.