In the main programs RFEM 5 and RSTAB 8, the internal forces, support reactions, and deformations are determined. Add-on modules are available for these main programs, where you can perform design according to a certain standard or a stability analysis, for example. The internal forces and deformations are automatically imported from the main program and further processed in an add‑on module.
The main programs can also be extended with the add‑on modules, such as RF‑/DYNAM Pro and RF‑MOVE, which increase the scope of functions. Most add‑on modules have their own graphical user interface where the standard-specific conditions are taken into account.