Aluseks oleva elueajaotuse kui ka elueapingemudeli kombinatsioon erinevatel pingetasemetel saadud rikkeaja andmetega annab hinnangu omaduste kohta tavapärastes kasutustingimustes.
The combination of both an underlying life distribution and a life-stress model with time to failure data obtained at different stress levels, will provide an estimation of the characteristics at normal use conditions.