> OKRs, given they typically focus on change are usually leading indicators focused on shorter time windows and KPIs, which represent the health of what the organisation seeks to sustain, are usually lagging indicators focused on longer timeframes.
A lagging indicator is the result of something that took place in the past; 99.99% uptime over the last year indicates you probably had some good practices in place (redundancy etc). If those practices were to change, it would take some time for the kpi to actually change—it lags behind.
Hours worked is an imperfect predictor of output in a factory. Widgets delivered is a late confirmer. Leading and lagging indicators for productivity.