The idea behind the Airline Difference marking system is to equip low cost airlines (LCC) with a system to label airlines with varying quality and service levels. The quality of an airline is quantified by the ratio of in flight personnel (i.e. pilots and cabin crew) compared to passenger seats and revenue on board, measured as airtime. Airlines are expected to operate efficiently, adhere to the desired service level in time and remain compliant with all prescribed air safety regulations at al