However this information is hard coded in the rules and the numbers that are calculated can only reflect the cases considered by the system. For example, Lazaro et al. Rosen et al. More work on general net-shape manufacturing is reported in three parts by Wozny et al. Their approach is broad and more complete than most others and considers multiple manufacturing processes when evaluating components.
Evaluation is done hierarchically during the configuration and detailed design stages.
In addition, they consider the functionality of the parts, tolerance information and also provide redesign suggestions. Finally, they also consider assembly of the components. Their approach integrates many phases of the design and manufacturing process. Dissinger et al. The system is interactive, alerting the designer of the rule violations and giving suggestions for modifications.