Mean Time To Restore or MTTR

The time it takes to restore service when a service incident or a defect that impacts users occurs. 

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