Architecture & practice·Teams, ownership and Conway's law
the team that wrote the code carried the pager for it, and the retry logic got better within a month.
You build it, you run it
Also calledDevOps ownership, operational ownership
The team that builds a system also operates it. Its power is as a forcing function rather than as an efficiency: feedback from production reaches the people who can change the design, so unloggable failures and unactionable alerts get fixed instead of being endured by somebody else. It is expensive in a way that must be funded — on-call time is real time — and it fails when teams are given the pager without the authority to change what pages them.