A KPI data dictionary prevents teams from reporting different numbers under the same metric name.
Define the business question
State the decision the metric supports and who uses it before choosing a formula or chart.
Document the formula
Record numerator, denominator, period, inclusion rules, exclusions, unit and treatment of incomplete records.
Assign data ownership
Name the source system, preparer, reviewer, refresh date and correction route for each measure.
Publish with context
Show trend, target source, limitations and material data-quality issues so management can interpret movement responsibly.
A practical next step
Choose one scope, one decision owner and the evidence required before expanding. JobiN can help diagnose the priority and design a reviewable scope.