Archviz
Archviz is used for visualizing architectural design in 3D space. This is really useful to see what an exterior or an interior would look like in real life.
Interior
interiors are be biggest part of an architectural design. It is most useful for buyers to see how they can live or will be living in.
Floor plan visualization
Full floor visualization is used for costumer to see the full view of an apartment in 3D space. This visualization is not representing the real scale or furniture placement but just a rough idea how things can look when finished.