For example, sight lines and ceiling heights. The mock ups are not modular. If something needs to be changed, usually it is cut apart with saws and reconfigured. It is generally rough framing, glue on masonite with cladding. The mock up is specific to each courtroom that is designed.
Testing is done on the placement of monitors, outlets, amplifiers, and microphones.
The mock up does not accommodate wiring, it is not built to that detail. Once it is built, the larger pieces do not move, like the judge's bench. It would also be great to learn at what point in the design process it is used. And, how much it costs. Also, it would be useful to learn the users' perception of strenghts and weaknesses of existing mockups.