Key Performance Indicators measures performance levels from hard data. It is a way to determine and measure how effective a company achieves its focused business objectives. This is a way to evaluate success at reaching targets and goals. High-level KPI's focus on the big picture of a company: the overall business performance. Low-level KPI's focus on the smaller pictures of a company: the processes behind departments. Using quantifiable data and performance levels to gauge its success has the raw data to provide a business or company's efficiency and quality.