Although this is the most expensive prototyping method, it may be the most economical in that it provides the surest way to avoid expensive changes in production molds. In order to reduce the number of prototypes required, designers are turning to finite-element analysis. FEA programs allow parts design and structural analysis before tooling is cut. Related software, such as moldfilling analysis and warpage programs, help to eliminate processing problems before they start. Many of these programs depend on materials databases that organize various properties into a manageable format.
Databases also enable users to conduct a fast and efficient materials search.