Computer-Aided Design (CAD) is the main tool in Product Lifecycle Management process in generating geometries.

Computer-Aided Design (CAD) is a computer-based tool assisting engineers, architects and other design professionals.

One of the first steps in Computer Aided Engineering (CAE) is geometry generation authorised by CAD tools.

It involves both software and sometimes special-purpose hardware.

Current packages range from:

• 2D vector based drafting systems to
• 3D solid and surface modellers.

CAD is becoming more and more important in designing, developing and optimising products with benefits such as greatly shortened design cycle. CAD enables designers/engineers to lay out and develop their work on screen, modify it many times, if needed be, print it out and save it for future editing, saving a lot of time on their drawings.