This is a reply to Ulf Strom's comment in Issue #411.
I think the original message that kicked-off this very active discussion was about piping and process plant design ( http://www.upfrontezine.com/2004/upf-400.htm#a ). Perhaps someone will correct me, but process plant design is probably more complex than building designs.
At this point, the "big boys" (PDS Intergraph, PDMS Aveva) seem to be getting challenged by the upstart AutoCAD/MicroStation add-on guys (CADWorx, Bentley's two 3D piping offerings, CADPipe, etc.) and even some lower-end, perhaps less-capable 3D packages like MECH-Q running on IntelliCAD. Of course, scale is everything, but with ever-increasing hardware power at progressively lower cost...
Paul
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