I'm training to be an ATC on VATSIM, and the term "valid departure gate" is tossed about a lot, but not (to my perception) defined. Googling "departure gate" drowns me in passenger terminal maps and notes about what TSA will make me throw away before being allowed to board my plane.
This question about 'arrival gates' seems to clear that up, but since my first role on VATSIM will be verifying that routes are kosher as Delivery controller I wan to be as clear as possible:
Is a departure gate always the final fix on a SID/Transition? Or should I be double-checking additional fixes along the route (when there's no preferred route to check against) to ensure that they're crossing from our center to another center correctly?