Where did these names come from. I’ve been reading the HID(Human Interface Device) USB spec and I don’t see these concepts. Perhaps from DirectInput? I ask because X3D spec is looking at exposing general input devices. We’ve been using JXInput but might move to jinput. JXInput has Axis, Button, Directional, but the model here is somewhat different.
Hi
The orignal names came from the working group which I believe involved involved a sun and sony employee, some names have changed now, after great discussion 
Endolf