The shortcomings of data being fit for some purpose of use compared to data that is aligned with the real world is a repeating topic on this blog latest in the post “Fitness for Use” is Dead.
There is an information screen telling when your baggage will start rolling in. What actually seems to happen is that a fixed time is assigned to every flight and then it starts counting down the minutes. Most baggage then starts rolling in (and this is showed on the screen) before zero minutes is reached. If it, as with my flight, happens that zero minutes is reached without delivery, the information screen shows that the baggage from this flight is delayed – but not how long.
So, the information provided is when you could expect your baggage probably according to some service level goal. OK, fit for that purpose. But in fact that doesn’t help you as a passenger a lot and doesn’t help at all when that goal isn’t reached.
End of rant.