According to different schools, the requirements are different. Some schools require relaxation, and the graduation design or thesis topic can be changed at will, as long as the repetition rate meets the requirements of the school. However, many schools have strict requirements. They must follow the topics assigned by the instructors and check the progress regularly. The instructor thinks that you have achieved the task before allowing you to reply. This situation is very common in a college (especially 2 1 1, 985). Specifically, step by step according to the requirements of the graduation design task book issued by the school, and meet the requirements of the task book before graduation.