Earlier attempts at using data from various CAD systems within PC-DMIS required internal CAD data translations that were, at times, prone to errors and data loss.
A direct interface with a CAD system, however, does not translate the CAD data. Instead, this unique functionality actually uses the CAD system's native mathematical routines to obtain the requested information. A Direct CAD interface also uses the CAD system's native API to access the CAD database for displaying and interacting with the geometry.