**Observability** refers to the extent to which the performance of functions or processes of components within a system can be easily seen. That was my working definition, at least. Wikipedia suggests: > [!cite] Observability > measure of how well internal states of a [[What is a System|system]] can be inferred from knowledge of its external outputs Writing to the log in coding is all about increasing observability. My [[PDW|Data Journal]] is, in large part, a tool for creating observability in the system that is my life. **** # More ## Source -