The drawings are stored electronically so that revisions or duplications can be made easily. These systems also permit drafters to easily and quickly prepare variations of a design. Although this equipment has become easier to operate, CAD is only a tool. As CAD technology advances and the cost of the systems continues to fall, it is likely that almost all drafters will use CAD systems regularly in the future. Drafting work has many specializations and titles may denote a particular discipline of design or drafting.
Architectural drafters draw architectural and structural features of buildings and other structures.
They may specialize by the type of structure, such as residential or commercial, or by material used, such as reinforced concrete, masonry, steel, or timber. Aeronautical drafters prepare engineering drawings detailing plans and specifications used for the manufacture of aircraft, missiles, and parts. Electrical drafters prepare wiring and layout diagrams used by workers who erect, install, and repair electrical equipment and wiring in communication centers, powerplants, electrical distribution systems, and buildings. Electronic drafters draw wiring diagrams, circuit board assembly diagrams, schematics, and layout drawings used in the manufacture, installation, and repair of electronic devices and components. Civil drafters prepare drawings and topographical and relief maps used in major construction or civil engineering projects such as highways, bridges, pipelines, flood control projects, and water and sewage systems.