Christine Yen

Historically, monitoring has been thought of as an afterthought of the software development cycle: something owned by the ops side of the room. But instead of trying to predict the various ways something might go sideways right before release and crafting dashboards to prepare, what might it look like to use answers about our system to figure out what to build, and how to build it, and whom for?

Observability is the practice of understanding the internal state of a system via knowledge of its external outputs -- and is something that should be built into the process of crafting software from the very beginning.