What Does It Mean that Diagrams Represent Constructions?

Although it is commonly held that geometrical diagrams can represent constructions, the nature of the construction representations has rarely been closely investigated. There is no clarity on the subject of construction nature nor the nature of the representation relation. In this paper, I address the question of how geometrical diagrams can represent constructions. I describe constructions as the procedures for arriving at a target. Diagrams exemplify these procedures.