This document discusses key performance indicators (KPIs) for quality checkers. It provides examples of KPI materials that can be used, including lists of KPIs, performance appraisals, job skills, and key result areas. It also outlines the steps to create KPIs for quality checkers, common mistakes to avoid, and how to design effective quality checker KPIs linked to strategy. Various types of KPIs are defined such as process, input, output, leading, and lagging KPIs. The document recommends additional KPI materials that can be found on the kpi123.com website.