Also wondering what parent means...IMO the Boss form factor is by far the best of any mass market pedals from the '80s. Indestructible footswitch the width of the pedal, thumbscrew for battery compartment access, easy to AC power, large text/high-contrast color schemes & LEDs easy to read on dark stages, (some but not all) knobs big enough to twiddle with your feet.
In comparison - DOD had terrible footswitches and detachable (read: instantly lost) battery covers, and their jacks always came loose if you just looked at them; MXRs from that era typically had non-true bypass switches, no external power jack or quick battery access; the little square Ibanez/Maxon footswitch was harder to hit; and while Electro-Harmonix stuff is/was cool and strange, the build quality was always a crapshoot.