DP the essence of the thread was to assess if an APP might be a more practical method to provide guidance on the rules than endless scrolls of legal script. The comments suggest the challenges opposing the development of an APP would come from organisational hurdles rather technological capability. Remember the TAXI industry? That had a regulatory authority similar to the CASA and yet an APP (UBER) effectively invalidated it's very existence. Whilst this thread is in a different context, I think that example shows the potential capability of an APP. Albeit a bit off topic, if you consider the scale of impact a ride share APP had on the taxi industry I wonder how the CASA would fare if a similar ride share took hold in the air transport industry?