Draft, approve and retire metric definition versions before results are calculated against them.
Metric Steward records the outcome definition with its code, organization, effective dates and policy reference, and marks it active. The policy reference names the measure specification the organization follows.
Metric Steward drafts a metric definition against that outcome definition with its grain, numerator and denominator expressions, unit, aggregation method and version. The draft stays at Draft and is not used to calculate results until it is approved.
Data Engineer records the source mappings the metric depends on, with source and target fields, types, the transform rule and the date the mapping takes effect.
A Metric Steward other than the author checks the expressions against the policy reference and approves the version, moving Status: Draft → Approved and recording themselves as the reviewer.
When an approved version replaces another, Metric Steward moves the earlier one Status: Approved → Retired. Results calculated against it keep their link to that version.
And how to keep it from happening.
Start free, then use Proto to change fields, steps and approvals before your team goes live.