In order to explore those behavior norms shared by the members of HROs,a participant observation study was conducted in a petrochemical plant for 103 days,by collecting and recording their behavior and background on the spot,and then making these records into behavior cards,it was found by three experts that the behav.

Of course,because internal point of view is one kind of theoretical attitude,it is not one of two practical attitudes:bad man s point of view or participants point of view.

The main methods to acquire data of ethnographic research include participant observation and non-structure interview,and it follows induction logic,persists the principle that researchers should not conjecture or influence natural phenomenon,and all these contribute the validity of ethnographic research.