Machine over Manual
Architectural drawings are a structured collection of graphical objects - lines, curves, polygons, arcs etc. In manual drafting, the designer uses certain tools such as the straightedges and compasses. The tools being used determine the object that can be drawn. Hence, these tools limit the range of objects that can be drawn.

CAD and Architectural Drafting
As in manual drafting, architectural CAD draftings are also created using certain drafting tools. But the similarities end here. Unlike manual drafting, all drawings using CAD drafting systems are accomplished by way of point specification. By specifying two points the designer can draw a circle, rectangle or a simple, straight line. A manual drafter draws on paper, a 2D rectangular surface of definite size. A CAD architectural designer draws on a 2D surface of infinite size. Hence, drawing figures of large sizes is not a hindrance.

Process

Conceptual Design
The architectural design process begins with the comprehensive understanding of the client's requirements and creation of a conceptual design. This design depicts the client's specifications and forms the base for the subsequent drafts. The initial design and the changes are incorporated into a set of working drawings. These illustrate the natural evolution of the design.

Architectural Drafting
The drafting work begins after the conceptual design has been confirmed and the client's feedback has been acquired. According to the need of the design and the client, subsequent changes are made in the design, and drafts are created. To create the conceptual design, the plan view, section, elevation and details are created. These are duly drafted after consulting the client. The need for multiple drawings showing various changes have been eliminated with the use of CAD computer aided drafting and design. Changes can be easily incorporated and depicted.

Rendering
After all changes have been communicated to the client and the final draft is agreed upon, the design is rendered as a 2D or 3D image. The various aspects and blocks of the structure are visualized at this stage. With the help of Computer Aided Drafting software, 3D modeling, walkthroughs and animation, the structure can be visualized like it would look after construction, without the laying of a single brick!