observability

noun

1. (uncountable)The state of being observable.
2. (countable)A measure of the extent to which something is observable.
3. (countable, uncountable)The ability to collect data about the execution of distributed programs, especially the interaction among its components.

   ““In 2018, we saw many companies that are cloud-native and in the tech sector talking about observability,” he said. “Last year, we saw this becoming more mainstream, with large organizations adopting cloud-native technologies and becoming interested in observability.””

   “Observability is defined as the ability to understand the internal state of a system by only looking at external outputs of the system. […] Observability builds on monitoring and enables you to gain insights about the internal state of your application.”

   “In other words, SREs are directly responsible for the effectiveness of observability.”