Over the time, he is affected by his work experience and the organisation as well as his personal experiences and maturity. On the other hand, the organisation is also affected by the presence or absence of the individual. Thus, it is essential that OB must study the ways in which the individuals and organisation interact with each other.
The organisational behaviour must be studied from the perspective of the organisation itself because an organisation exists before a particular individual joins in and continues to exist after he or she has left the organisation. Thus, OB is the study of human behaviour in the organisation, the individual-organisation interaction and the organisation itself. And these factors are influenced by the external environment in which the individuals and the organisation exist.
Thus, we can say that we cannot study individual behaviour completely without learning something about the organisation. On the other hand, we cannot study the organisations without studying the behaviour of the individuals working in it. This is because the organisation influences and is influenced by the people working in it. Moreover, both the individuals and the organisation are influenced by the external environment. Thus, the field of organisational behaviour is a complex field. It seeks to throw light on the entire canvas of human factor in the organisations which will include the causes and effects of such behaviour.