Understanding importing and exporting of SVG and DXF will help make Inkscape your friend in an AEC workflow. If you're looking to make technical drawings from CAD beautiful then Inkscape can be useful. If you're looking to sketch out organic shapes then Inkscape can be very useful and can export to Drawing Exchange Format (DXF) for further refining and drawing layout in a CAD application such as LibreCAD or QCAD or importing into FreeCAD or Blender as the basis for a 3D design. Here let me point out that GIMP also converts between file formats. You can read about why that is in the CAD Interoperability page of the Inkscape wiki. Inkscape is not a CAD drafting tool, it's a drawing tool.

Dia is a powerful diagram editor with limited control of graphics. There are several alternatives vector editors listed at. Whether you are an illustrator, designer, web designer or just someone who needs to create some vector imagery, Inkscape is for you! It is compatible with Linux and Windows platforms and functions as an OSX vector editor that can create transparent backgrounds, gradients, etc. Inkscape is a professional vector graphics editor for Linux, Windows and macOS. Inkscape is powerful open-source software.

Gimp vs inkscape web design