Interdisciplines approaching perceptiveness which is one of the most important trends of today's business and science world make the relationships between Business Administration and Industrial Engineering departments more important. In this respect, these departments need to make program approximations in order to apply double major and minor programs for their students mutually. In this study, the double major and minor programs of Business Administration Department in which Industrial Engineering Department students are trained have been searched. And also a double major and minor program design fort he students of these departments have been proposed in the frame of mutuality principle. This program indicates that the studies made for the approximation between these departments, especially double major and minor major applications, will get more appealing for the students if the number of the equivalent credits and courses are increased. Consequently program approximations must be considered important for the mutuality principle to work.