The approach is considered, when the influence of factors is examined through final result - change of an aerodynamic condition of an aircraft. Thus the main attention is given not to the factor, which has caused occurrence of the given change, and its influence on of flight safety and operational effectiveness of the given copy of an aircraft and capability of full or partial compensation of this change.

The World Congress "Aviation in the X X I-st Century", 14-16 september [Текст] = Матеріали Всесвітнього конгресу "Авіація ХХІ століття" 14-16 вересня 2003 року / International Civil Aviation Organization; Ministry of Education and Science of Ukraine; National Academy of Sciences of Ukraine; National Aviation University. — Kyiv : NAU, 2003. — 438 p. : il.