- Allow a user to input geometry, and other information
- Provide methods for manipulating the geometry
- Provide for display output for the user
- Allow storage of the design in formats which can be used in other CAD and CAM packages
• There are other features of great value to a CAD system,
- Don’t forget the manuals, They can help get through the tough times. If not, you may spend a lot of money calling help lines.