Measuring engineering needs three complementary metric sets. DORA — delivery flow (deploy frequency, lead time, change failure rate, MTTR). DevEx — engineer experience (flow, feedback loops, cognitive load).
SPACE — outcome and context (Satisfaction, Performance, Activity, Communication, Efficiency). None of the three alone answers 'is the team productive' — you need all three.
The map shows which metric belongs in which lens, which are proxies vs outcomes, and how to avoid Goodhart's law by optimizing one counter at the expense of the others.
Map existing metrics across the DORA, DevEx, and SPACE lenses.
Separate proxy metrics from outcome metrics.
Check that optimizing one counter does not break the other two lenses.