1. A registered architect is a person who performs the business of registered architect in an architectural design unit, mainly serving architectural design. Registered construction engineer is a professional and technical personnel engaged in key positions of general contracting and construction management of construction projects, mainly serving the general contracting unit.

2. Architects are engaged in design with high technical content. Without a lot of knowledge of physical mechanics, plane geometry and solid geometry, they can't be qualified architects. Architects lay stress on theory and seldom involve physical and mathematical knowledge.

It is difficult for a first-class architect to pass nine exams. It is relatively easy for a first-class constructor to pass four exams in all subjects.

4. The income of the first-class architect is higher than that of the first-class builder.

5. Relationship between the two: the architect designs the drawings, and the builder directs the construction according to the drawings designed by the architect.