Many of the kinds of drawing described above represent reality in some way. However, a separate category can be usefully drawn for the more elaborate task of drafting. It includes engineering drawing and architectural drawing. The distinguishing characteristic is that, although diagrammatic, there is a direct correspondence between elements on the page and physical reality. Distance on the page corresponds to distance in space.
Any attempt to develop a package that can handle drawings of this complexity must be considered a long-term project. Nevertheless, the Adage system is designed with this future potential in mind. In the shorter term, the project does aim to provide libraries for simple drafting.