Topic summary
Role-based security

Extracted from the Wikipedia article Role-based access control.
In information security, role-based access control (RBAC) or role-based security is an approach to restricting system access to authorized users. It is a policy-neutral computer access control mechanism defined around roles and privileges. The components of RBAC, such as role-permissions, user-role and role-role relationships, make it simple to perform user assignments. RBAC can be used to facilitate administration of security in large organizations with hundreds of users and thousands of permissions.