Office manager is an executive who is in-charge of office and whose chief function is to organise and control office. Office work is regarded as a service function or staff function and therefore an office manager may assume the position of a staff executive or service executive. He is an executive who performs all the functions of office management.

Because of this reason the office manager is known as manager of office services, system and procedure manager. He is not practically a service executive but he is a staff executive with functional responsibility. As a staff executive, he has dual role in the organisation. In one end, he has a membership and advisory role in relation to higher level and other departmental managers. On the other hand, he has a leadership role in relation to subordinates.