What is a Key Performance Indicator?
A KPI is a measure of performance used to measure progress towards a target / a goal / a desired state.
A KPI is different from a metric. A metric is anything that can be measured:
A metric becomes a KPI when you link it to a goal and have a clearly defined target to pursue and evaluate against. It also needs to be assigned to someone.
Tip:
Ensure that your KPIs are aligned to goals and have clearly define targets and someone is accountable.