In design phase , which computer software do you use ?

It's better to use AutoCAD.

.. Autodesk Revit .. Autodesk Autocad 

3D MAX .. PHOTOSHOP

AutoCAD, 3ds max and Adobe photoshop.

In the design phase, use the AutoCAD and SketchUp software

There are lots of software out there, which you can use in design during the design phase. eg. Archicad, Autocad and Revit. Based on experience, I would suggest the Revit. You can use it from the concept (sketch) design and add the details along the way, you can use the same model for structural and MEP too. Extract information in the model for the procurement team. And still you can use same model for construction and eventually the as built drawing.

Dear,

Thanks for your invention, I am using AutoCAD, but there are many software for Design. Like Microstation. Catiea, Rvit, MEP, etc... 

For the aerospace and automotive sectors, CATIA is usually preferred as an advanced CAD software.

Autodesk Revit / Autodesk Autocad Architecture

thank you all for reply , we can share these info , may we have someone who use a software that unknown for anyone of us 

I like to use 3ds max with Vray rendering

i use Auto Cad ..it usually depends on company requirement