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The definition of observability is “the ability to measure the internal states of a system by examining its outputs”. For software systems, this means the ability to get detailed diagnostic data from the software during operation.

The increasing complexity of embedded systems is challenging traditional development and testing methods.

When developing embedded software, observability is usually only used reactively, for example during subsequent debugging or through log analysis. It is high time for a proactive approach that is able to catch even sporadic errors early on.