The following points are assumed.
You were created as a user with an ARIS Designer license and with the necessary privileges in the system.
You have Read, Write, and Delete database privileges for the database group in which you want to create the sample model.
You have the access data for ARIS Designer, that is, user name, password, and a link to the start page of ARIS Designer. This link should have been provided to you by your system administrator.
If in doubt, please contact your system administrator.