DORA metrics
Delivery performance
How fast and how safely changes reach customers, measured from this repository every week. The four keys come from Google's DevOps Research and Assessment (DORA) programme.
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The four keys
How it is measured
- Deployment frequency: how often a change reaches production. Until every app deploys automatically, each pull request merged into main counts.
- Lead time for changes: median time from a pull request's first commit to its merge.
- Change failure rate: issues labelled
incidentplus reverted changes, divided by deployments. - Time to restore service: median time from opening an
incidentissue to closing it.
The DORA metrics workflow updates the numbers every Monday. See ADR-0010 for the reasoning.