Relationship between Elective Courses and Required Courses

In this paper,the authors think it is important to correctly understand the nature of elective courses and required courses for one professional,to comprehend the relationship between elective courses and required courses.The professional required courses must reflect the basic professional knowledge and the basic theory.The elective courses need to further broaden the professional caliber and to extend professional capacity.The elective courses setting must be analyzed based on the investigation of survey development status for new knowledge and technology related the professional.