# DORA & deployment metrics

- [Change lead time](https://help.swarmia.com/definitions/dora-metrics/change-lead-time.md): Change lead time measures the full lifecycle of a pull request from the first commit to deployment.
- [Time to deploy](https://help.swarmia.com/definitions/dora-metrics/time-to-deploy.md): Time to deploy is the average time between a pull request merge and deployment.
- [Deployment frequency](https://help.swarmia.com/definitions/dora-metrics/deployment-frequency.md): Deployment frequency is calculated by looking at the total number of deployments that happened in a given time period.
- [Mean time to recovery](https://help.swarmia.com/definitions/dora-metrics/mean-time-to-recovery.md): Mean time to recovery represents the average time between a failing deployment and a deployment that is marked as a fix.
- [Change failure rate](https://help.swarmia.com/definitions/dora-metrics/change-failure-rate.md): Change failure rate is the ratio of failed deployments to all deployments.


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