with Malaysia Airlines,its :
4 Bars plus a star : Management pilot
4 Bars : Captain
3 Bars : F/O with ATPL
2 1/2 Bars : F/O without ATPL
2 Bars : Second officer(no difference basically between S/O and F/O,except that S/O has less hours)
1 Bar : Cadet pilot under conversion training
cheers!