Mean Time To Restore or MTTR

The average time taken to recover, fix and restore service when a release cause a failure

App inputs to this metric:

CI/CD tools

Range points and what they mean:

The DORA performance grades for MTTR are:

1. Elite - Less than 1 hour

2. High - Between 1 hour and 1 week

3. Medium - Between 1 day and 1 week

4. Low - Between 1 week and 1 month

Use cases:

1. Plan releases to keep business impact to a minimum in combination with Change Failure Rate metric.

Some more references:

https://www.hatica.io/blog/dora-metrics/ (opens in a new tab)