A testing strategy whereby units are tested at stress levels higher than use stress in order to facilitate failures in a timely manner. The results of these tests are then analyzed in such a manner so that a profile of the failure behavior of the products at the use stresses can be determined based on the behavior of the products at the accelerated stresses.

The process of simulating five years of use within four weeks. Testing includes exposing athe phone to a variety of extreme environmental conditions as well as cycles that mimic several years of use.