This document discusses key performance indicators (KPIs) including their purpose, how to create them, common mistakes, and types of KPIs. It provides steps to build a KPI system such as defining objectives, identifying key result areas and tasks, and determining methods to measure results. When creating KPIs, common mistakes include having too many and not tailoring them to change over time. KPIs should be linked to strategy and empower employees. Types of KPIs include process, input, output, leading, lagging, outcome, qualitative, and quantitative.