With the development of society and the progress of science and technology, the contents of architecture, the problems to be solved are becoming more and more complex, the related disciplines are more and more involved, and the changes in materials and technology are becoming more and more rapid. Relying solely on the passing down of teachers and disciples, the way of accumulation of experience has not been able to adapt to this objective reality; In addition, buildings often have to be completed and used in a very short period of time, so it is difficult for a craftsman to hold two positions, which objectively requires a more detailed social division of labor, which promotes the gradual formation of a professional architectural design. Become an independent branch of discipline.