Computer-assisted design software comes in types of 2D, 2.5D, and 3D computer-assisted design software, and there is special 3D computer-assisted design software programs made for modeling objects either as a solid object or a wireframe.
In 2D computer-assisted design software, there is only an X axis and Y axis on which to draw. There is no depth, making all drawings flat. With 2.5D computer-assisted design software, there is no real depth added to the plans, but a false Z axis is introduced to trick the mind into thinking there is depth. This is similar to how a painter or drawer can show object depth on a flat piece of paper[paper?:paper sample maker cutting machine] or canvas. When using 3D computer-assisted design software, the user is actually making a 3D representation of the object. These computer-assisted design software programs are best for product creation, for which a flat drawing cannot fully capture all the detail necessary.
