Not long time back building designs & drawings was a pain in the neck by the hand using the conventional pen and paper on a drafting table.
This soon changed with the advent of the desktop computer, which gave rise to Computer Aided Design (CAD). For more information you can check this URL : http://www.bluentcad.com. Changes can be made in a jiffy without having to redo the whole drawing, which was earlier a tiresome process.

Now with CAD in picture, which is known as Computer-aided design, you need not fear about many of your drawings that are lost or destroyed, there is a booming service industry, which is at your doorstep to create computerized CAD drawings & designs in 2 Dimension & 3 Dimension of existing buildings.

CAD can be utilized for architectural as well as mechanical services. CAD is a hardware & software combination that caters to architects, engineers and consultants in the real estate & manufacturing industry globally.

CAD can be used for 2D drafting, 3D modeling, animations , interactive presentations, data managements, 2D - 3D CAD modeling & animation, architectural CAD, mechanical CAD, drafting and design, 2D 3D graphics, paper to CAD conversions, structural CAD drawings , 3D visualization.

In Mechanical CAD services it can be utilized for 2D Drafting, 3D modeling, 3D assembly, 2D - 3D sectional views.

The best way to have a good idea of CAD is by having a visit at this URL http://www.bluentcad.com). This one gives you some idea of the services which can be offered by CAD.

I hope the above information, which I have shared with you, is going to be resourceful.