IGES vs STEP

[mlister]

Does anyone know which is a better file type to import 3D CAD into Pro-e, IGESor STEP? What are the benefits or pit falls to each?
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[dgschaefer]

I'm not sure where I heard this, but my understanding is that STEP is a
more tightly controlled standard. IGES leaves a lot more to the
interpretation of the various software vendors. We've always had better
luck with STEP when going between Pro|E and Saladworks.

Doug Schaefer