Instructional Designer (ID): Has access equivalent to that of an Instructor, but IDs do not show on the Course Faculty list. This role is usually given to course coordinators to assist adjuncts or future teachers who want to reuse content from a peer.
Facilitator: Has access nearly equivalent to that of an Instructor, but Facilitator appears by their name in the Course Faculty list so they (and the students) know they are not the primary instructor.
Teaching Assistant (TA): Has access nearly equivalent to that of an Instructor but Teaching Assistant appears by their name in the Course Faculty list, which usually implies that they are an advanced student who is either earning credit or pay for their work.
Grader: Has full Gradebook access but has no access to build or remove content. Appears on the Course Faculty list as Grader.
Course Builder: Has access to build or remove content but has no access to student grades.
Teaching Assistant - Feedback Only: Has Teaching Assistant like access to view the course but has no grading capabilities. “TA - Feedback Only" can provide feedback, but they do not see student grades and are not able to grade work.
Instructor: Has full access to add and remove both content and grades.
Course Builder: Has access to build or remove content but no access to grades.
Note: The role titles are listed followed by their abbreviation in parenthesis used for bulk enrollment.
Very few people get access to system roles. This has to be labeled as a part of your job description and you must attend training to gain this access. It is just that for 99.9999% of the users their System Role is "None".