The Questionnaire consisted of four parts, the first part covered the general information of sample companies, the 2nd part asked to the role of management accountant from their subordinates’ perception, the 3rd asked about management accounting practices and the last part asking the factors drive the changing role. There are 2 variables in measuring management accounting practices, they are management accounting tasks and management accounting tools/techniques (Yazdifar and Tsamenyi, 2005). The questionnaires asking respondents to rate either “vitally important” or “average important “or “Negligible” on 12 management accounting tasks and 11 management accounting tools. Using the same scale, management accountant s as respondents asked to rate the 11 factors drives their changing role. Finally, Mann whitney U test was used to test the differences between the two groups (medium scale and big-scale companies).