Principlev1PR-855
Build measurement systems before executing strategies…
Build measurement systems before executing strategies, not after problems become visible, because drift detection requires baseline instrumentation.
Why This Is a Principle
Derives from Hindsight Bias and Calibration Necessity (memory reconstruction unreliability), The behavior of a system arises from its structure… (system behavior emerges from structure), and Self-monitoring of behavior produces significant… (self-monitoring affects goal attainment). The lesson emphasizes 'build the dashboard before you need it'—the principle prescribes proactive instrumentation because retrospective measurement is contaminated by biased reconstruction.