A site group is the collection of pages and content that belongs to a particular area of the college, such as a single department or office. Within each site group, every person is given one of three permission levels. This level is separate from your platform-wide role: your platform-wide role sets what you can do across the CMS in general, while your site-group permission sets what you can do to that group's content specifically. A person can hold different permission levels in different site groups.
The three levels are listed below from least to most access.