I'm not very clear on what you are asking.... If its which products from the below list can be integrated into each other and what doesnt? Then:

AutoCAD Advance Steel - (AutoCAD, AutoCAD, Map 3D, AutoCAD MEP, Fabrication CADmep, Factory Design Utilities) Can be imported into  Navisworks & Revit_Advanced Steel.

AutoCAD - As per and Inc Advance Steel.

AutoCAD Map 3D - As per and Inc Advance Steel.

AutoCAD MEP - As per and Inc Advance Steel.

Fabrication CADmep - As per and Inc Advance Steel.

Fabrication CAMduct - CADMEP & ESTMEP only through MAJ Export.

Fabrication ESTmep - CADMEP & CAMDuct only through MAJ Export.

Factory Design Utilities - As per and Inc Advance Steel.

Navisworks - Can import most file types. CAMDuct and ESTMEP excluded.

Revit_Advanced Steel - Can import DWG, SAT, etc. File exports but functionality of Revit Advanced Steel would be lost.