Commercial: Buying, selling accounting: Record keeping security: Protect staff and property technical: Production and manufacturing financial: Use of capital resource management: Plans, coordinates and controls
Henri Fayol was the first person who identified the functions of management in his classic 1916 book called Administration Industrielle et Generale. He was the managing director of a large French coal-mining firm. He defined the five functions of management: Planning, organizing, commanding, coordinating, and controlling. See here for more information: Management functions