Compare Part for Changes
When the design model changes, you need to know what changed. Look for tools that make it easy to detect what is different in a part;

tools that help you to graphically visualize what geometry has been added or subtracted in the parts are recommended.

Draft Analysis
Draft analysis is really the first step to finding out if a part is drafted properly so it can eject cleanly from the mold. Look for the ability to represent amount of draft graphically, with color. You also can use draft analysis to verify your mold inserts.

Undercut Analysis
Undercut analysis is different than draft analysis in that it shows areas in which geometry would be captive. These areas will typically require sliders, lifters or cores.

Thickness Analysis
Another tool that is handy for part and mold designers is the ability to check thickness of a part. This helps to avoid areas that are too thick and may sink, or areas that are too thin.

Structural Analysis
The ability to simulate linear and nonlinear material behaviors—including that of plastics, rubber and metals without having to export to another system—allows the user to quickly investigate many design scenarios to optimize part and mold designs. By using these tools you can determine the life cycle of a part or mold design and predict the failure of structures under cyclical loading.

Mold Filling Simulation
Mold filling simulation software
validates whether a plastic injection-molded part can be molded. The integration of these products directly into the design software lets the designer or moldmaker quickly check to see if the design will fill. Problems with filling can be caught immediately, before tooling is cut; corrections can be made and the analysis re-run within a matter of minutes without ever having to export the design model. In addition, injection locations can be determined and part wall thicknesses can be optimized .