Autodesk's structural analysis software, which exchanges data bidirectionally with Revit so structural engineers can analyze loads and forces on the same model the architectural team is building. A structural engineer exports the analytical model (see Structural Analytical Model) from Revit into Robot, runs load cases and code checks there, then pushes reinforcement or member-size results back - keeping the physical Revit model and the engineering analysis in sync instead of maintained as two disconnected files.