You don’t know what you don’t measure.
Key Performance Indicators (KPIs) are agnostic, measurable values that demonstrate how effectively an organization is achieving key objectives.
KPIs, metrics and associated data cannot be collected, analyzed and measured in a vaccuum. To be effective, they need to be supported by a policy framework, documented business processes, and a sound evaluation criteria.
In my experience, to be credible, KPI collection and reporting needs to adhere to a standardized on-boarding, maintanence, and retirement model that is assisted by Lean Six Sigma methodologies.