In the aerospace world, a "flat sat" (https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Opened-out_FlatSat_for_CubeSat_testing) is a development mockup of satellite splayed out on a bench with all the boards easily accessible for testing.
Is there a similar term of art for a spread-out functional prototype that's not a spacecraft? I feel like it should have a name but I'm not aware of one.
@azonenberg maybe "testbed", "testbench" or "breadboard", although none of these terms necessarily imply all the hardware being laid out flatsat style.
@destevez Yeah I'm about to build a flatsat of my Ethernet switch and trying to figure out what to call it lol.