Users are typically grouped together into user groups. These match very closely to how the majority of organization group together users by department and job roles. For example Account Groups might need to have access to billing and usage information, whereas System Administrators need to have access to administrate Storage, and other IT systems.
iconik Groups can mirror those organization groupings, and/or Directory groupings but it also allows a user to be a member of more than one group at a time. So for instance a user could be in the Group for uploading new Assets as well as for adding metadata. But another user is only allowed to download and add metadata.
Roles on Groups
Each group can have associated to it one or more roles. These allow granular control of what members of the group are allowed to do. For instance, a user that is in groups is only allow to download if one of the groups they are a member off has the role download.
By organizing users into groups, and then matching roles to groups you can insure functionality is only available to those that need it.
Changing the groups you are a member of
Only System Administrators are allowed to change which group you are a member of. Ask your Administrator for more details.