In 1984, Eli Goldratt wrote The Goal, a novel about manufacturing that has no business being as relevant to software as it is. It's also the most useful business book you'll ever read that's technically fiction, which is almost the exact opposite of most KPI frameworks.The core idea is the Theory of Constraints, and it goes like this:Every system has exactly one constraint. One bottleneck. The throughput of your entire system is determined by the throughput of that bottleneck. Nothing else matters until you fix the bottleneck.
[[The Goal by Eliyahu Goldratt]] 1984, on manufacturing and bottle necks in those processes. Software dev is not different by much. [[Critical Chain by Eliyahu Goldratt]] 1997 extended for project management. Vgl. Wolfgang Mewes Engpasskonzentrierte Strategie (EKS, 1971) https://de.wikipedia.org/wiki/Engpasskonzentrierte_Strategie