Within industrial contexts, a common view of the level of confidence needed in CAD data transfer processes may be expressed as “1 don’t mind if the [CAD data- tmnsfer] algorithm sometimes has difficulties, provided I get a warning message that tells me something has gone wrong. ” A particularly annoying, even mystifying, CAD data exchange problem occurs in the so-called ‘round-trip’ problem. There, an acceptable model is transferred from an originating system to a neutral format and then back to the original system, only to find that serious new flaws now appear in the model within the originating system.
Thomas J. Peters, Neil F. Stewart, David R. Fergus