What is the difference between User Groups Management and User Management?

What is the difference between User Groups Management and User Management?

      Each user in the eMAM System is created and managed by an eMAM Unit administrator. Users are organized in groups with different permissions. Hence, first “User Groups” are created, and then users are created and added to user groups. You should add user to a user group in-order to set the permission and give the access to the assets that are categorized.

Admin tools can be used by eMAM Unit administrator to manage User Groups, Manage Users, Manage Registration Form.