| (Management thinkers) | (Sequences of function advocated by them) |
| (a) Newman & summer | (i) Organizing, planning and controlling |
| (b) Henri Fayol | (ii) Planning, Organising, commanding, coordinating, Controlling |
| (c) Luther Gullick | (iii) Planning, Organising, Staffing, directing, controlling |
| (d) Koontz & O'Donnell | (iv) 'POSDCORB' |