Change Failure Rate is a DORA metric. It measures how often changes introduced in an application (for example new deployments) lead to failures in the application. Tracking the percentage of failed changes can highlight underlying issues in the development or deployment process. For example, a high Change Failure Rate could point to poor testing or a lack of code reviews.
To calculate the Change Failure Rate, you divide the number of failed changes by the total number of changes within a specific timeframe, such as a sprint or release cycle. And you can segment this data by type of change introduced to identify areas that need attention.