3.4.5. Systematic failures#

In the classification of failure root causes, the systematic failures are considered as major contributors to the total anomalies occurring on board of a satellite. For EEE components and electronic equipment, the systematic failures are linked mainly to the design and manufacturing errors such as errors during the design of the electronic boards, or during the soldering of EEE components on the electronic boards.

The FIDES methodology does not consider random and systematic failures separately; all failures are considered as “random” and no specific prediction model for systematic failures is included. Systematic failures are partly addressed and covered in the process questionnaire. However, this questionnaire has not been designed to allow for a clear split between random and systematic failures. So, the only way to specifically address systematic failures is to perform a prediction at system level according to the methodology described in Chapter 2.