Meaning of Orthographic Projection
Orthographic projection is a method of drawing an object by means of plane views. While isometric projection drawing looks at all the three views (or faces) of an object together, orthographic projection looks at the same three views separately but linked together.
Orthographic projection is the only drawing that shows the shape, angles, and size of each part of the article to be constructed as they really are. Because of this peculiar characteristic, it is one of the universally accepted drawings in the construction industry, therefore the drawing is usually used for production purposes.