When I talk with some of our students, they seem to often start from within SketchUp and then finish up inside AutoCAD. Some do all their modeling and images in SketchUp and create final presentation in Indesign (with some help of Photoshop). ArchiCAD is less used (although I introduced it with our students this year).
When I worked in architectural offices, this was usually a single-program workflow: draft in 2D with AutoCAD or VectorWorks. Most presentation documents in these offices were also created inside the CAD software, with only minor 3D or rendering (and only for competitions).
The way I see it currently is to do preliminary stuff manually or inside SketchUp, Rhino, 3ds max, VIZ, Photoshop, Maya, whatever... Then start with an empty ArchiCAD (or whatever) BIM model and NOT import the design model (as it leads to numerous problems, which are best avoided).This BIM model is finished to construction documents. Then it is best to do renderings with 3ds max or Cinema4D (or whatever) and collect everything. The final output depends: images on a website, layouts can be done in CorelDRAW or Illustrator or Indesign, drawings are done in the CAD software.
That said, I am doing a PhD. right now where I am looking at workflow of design models where it is attempted to create mechanisms to aid the flow of a design throughout different design phases. However, this is more theoretical and the prototype that I develop is not integrated with existing CAD software. But it is an interesting discussion.
I don't think there is a single linear workflow that is the best. Use a combination of tools you feel familiar with and which exchange files reasonably well.
--- stefan boeykens --- bim-expert-architect-engineer-musician ---
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