Bureaucracy is a system used by large organizations, both public and private, to administer a large number of people working together. A key part of bureaucracy is establishing a clear hierarchy and defining each person's role. The job of bureaucrats is to implement policies created by elected officials. Sri Lanka inherited a highly centralized bureaucratic system from British colonial rule that proved ill-suited to development needs and has undergone decentralization efforts over time. Decentralization and power sharing has been debated since independence in 1948 both in response to ethnic tensions and the need for participatory development.