INTRODUCTION:
We have studied the ideas of thinkers whose contributions have strengthened the discipline of Public Administration. Here we will study the systems approach; particularly the contributions of Chester Barnard who is primarily considered as a behaviouralist as he laid emphasis on the psychological aspects of management. At the same time he is considered as a systems theorist. He viewed organisation as a social system. Barnard, who had spent his life-time as a practitioner managing business 'systems', wrote two books "The Functions of the Executive" (1938) and "Organization and, Management" (1948) presented convincingly, his views on organisation as a cooperative system.
