David ParmenterKey Performance Indicators, 2007
True KPIs are non-financial, frequent, CEO-attended, team-tied measures that drive action — distinct from result indicators; most organisations track results and call them KPIs.
Andrew GroveHigh Output Management, 1983
Measurements should be paired so one indicator counters the side-effects of another — output with quality, speed with accuracy.
The EclipseFrontiers® LensA KPI you can't act on tomorrow morning is a trophy, not an indicator.