Role based access control is a system that restricts right of entry to computers or network resources while carrying out everyday jobs such as viewing, updating or modifying files. Role based access control, as the name symbolizes, is the type of restriction that is done on the basis of role of a person in an organization. In any organization, the role of a person depends on his working abilities. Once a role has been defined for an employee, according to the given role, the role based access control method authenticates the employee to perform wide range of tasks.
Role based access control is seldom referred to as role based security system.