There are four study-based security roles. A cancer group user may be assigned any of these roles.

Deident Viewer — This role is the lowest level of access granted to any cancer group user who is assigned to the study. It allows a user to sign into CCR with Research/Study for that study as the session purpose and allows the user to view non-identifying patient information for patients enrolled in the study, including the data in study-specific fields associated with the patient record.

Ident Viewer — This role allows a study user to also view data that might be considered identifying information (such as the patient's name or MRN) for patients enrolled in the study. (The study must not be specified as a de-identified study — see The Edit Study Window.)

Writer — This role allows a study user to add to or edit the data in study-specific fields in the patient record of patients enrolled in the study.

Coord (short for Coordinator) — This role allows a study user to access the Study Enrollments tab on the Edit Study window for the study and to perform enrollment-related functions — see Study Enrollment. A study coordinator can edit a study's settings, but in order to actually add a new study to a cancer group or remove a preexisting study from the group, a user must have a Cancer Group Administrator role within the cancer group — see Cancer Group-Related Security Roles.