Personnel Commissioner is equivalent to "assistant to human resource manager", focusing on the planning of various modules of personnel work, such as: the design of personnel forms; Personnel assistant is equivalent to "hr administrator", and its focus is on specific affairs related to personnel work, such as printing personnel forms. The rank of personnel specialist is higher than that of personnel assistant, and personnel assistant can only be divided very finely in larger enterprises. There is really not much difference between ordinary small and medium-sized enterprises.