PTC is running a full-page ad in CADalyst magazine:
At $4995, Pro/Engineer Wildfire creates drawings up to 17 times faster than SolidWorks. Want proof?"
I did, so I went to www.ptc.com/go/proof/ca (I think the "/ca" part tells PTC I saw the link in CADalyst magazine.) At the Web page, the claim was more subdued:
Pro/ENGINEER proved it is up to 3 times faster than SolidWorks in completing the most common 3D tasks.
17x. 3x. Hey, what's 5.7x between competitors? Imagine my shock when the Web page didn't ask for my personal information. A-downloading we go.
The comparison brochure lists a variety of tasks and the times it took for the two competitors to complete. The 17x claim in the print ad comes from the difference in times to save a drawing. Naturally, we can expect that PTC marketing picked and chose models whose time differences show up as the most dramatic.
The methodology was the same as a a larger study that contrasts Pro/E with NX 2, SolidEdge 14, SolidWorks 2004, CATIA V5R12, and Inventor 8. (It must've been delicious for PTC to find Inventor unable to complete a large assembly task.) Anyhow, it's this larger study that includes the test methodology, in case SolidWorks users want to squawk.
While the test methodoligies can be documented, what about the preferences for each CAD package? Did SoidWorks run sub-optimally and Pro/E super-optimally? I recall a competitor of Autodesk showing how slowly AutoCAD ran in comparison to their own product. I knew AutoCAD shouldn't run _that_ slow and quickly determined that high-speed redraws had been turned off: every view change, every pan, every zoom took an agonizing regeneration.
As one of my university profs said, "The conclusions are usually correct; it's the assumptions you have to check."