A role is a collection of permissions defined for the whole system that you can assign to specific users in specific contexts. 

Standard roles

 

Managing roles

Managing overall role capabilities can be done by an administrator using Administration > Site administration > Users > Permissions > Define roles. This is the place to add custom roles or modify existing roles.

The 'Manage roles' tab contains a list of roles on your site. The edit column contains icons for editing, deleting roles and copying roles, and for moving them up or down in the list (affecting the way that roles are listed around Moodle

Click on this link to know more about Managing roles

 

Permissions

Moodle allows specific roles to be able to change other specific role capabilities based on the context. For example, a teacher in a course may want all students (users with a student role) to be able to edit all forums in that course.

If you want to give a specific student the ability to edit a specific activity, see Override permissions.

 

• Permissions for a course can be changed on the course page via the Actions menu > More > Users tab > Permissions (Boost-based themes) or Course administration > Users > Permissions (Classic-based themes).
• Permissions for a particular activity can be changed on the activity page via the Actions menu > Permissions (Boost-based themes) or Activity administration > Permissions (Classic-based themes).

Click the Allow icon (+) opposite a capability to give permission to additional roles or the Prevent icon (X) to take away permission.

Click on this link to know more about (Permissions )

• Assign roles
• User policies
• Using roles
• Creating custom roles
• Role export and import