CAD Computer Aided Design or Drafting. Widely used sign layout, laser-cutting patterns for garment factories, schematic design and printed-circuit board layout
CAD inputting lines, arcs, coordinates, dimensions and text for engineering purposes into a data base. It can be manipulated during or after the job.
These electronic documents are then easily distributed, via a computer network, to the appropriate people involved .
CAD Systems are: 2D Model, 3D Model
AutoCAD, Microstation, 3D Studio MAX