Agile Churn metric

The Agile Churn metric is the ratio of the sum of the values of story points added and removed to the value of the planned story points of a sprint. It calculates the percentage of the change in planned scope for any sprint. By using this metric, you can learn how the change in planned scope impacts the progress and completion of the sprint.

Based on the Agile Churn metric data of any sprint, you can plan or organize the planned scope for any future sprints. You can learn the issue details of the story points that are added and removed to the active sprint in the metrics data table.
Note: Currently, HCL DevOps Velocity (Velocity) supports Agile Churn metric calculation only for the Jira integration. You must integrate or upgrade your Jira integration with plugin 2.3.24 or later for the accuracy of Agile Churn metric calculation.

Velocity calculates the Agile Churn metric by using the following formula:

Where:

  • Story points added: The total value of the story points of the issues that are added to the sprint.
  • Story points removed: The total value of the story points of the issues that are removed from the sprint.
  • Planned story points: The total value of the story points of the issues of the sprint that are present at 24 hours of offset time after sprint start time.
Note: Agile Churn metric is calculated after the completion of 24 hours of offset time from the sprint start time. Any story points that are added or removed within 24 hours of offset time is not be considered for Agile Churn metric calculation.
Here is an example of the calculation:

Consider a sprint had a total planned story points of 50 at the end of 24 hours of offset time completion after sprint start time.

An issue with story point of 5 is added to the sprint after completion of 24 hours of offset time from the sprint start time.

An issue with story point of 7 is removed from the sprint after the completion of 24 hours of offset time from the sprint start time.

Therefore, Velocity calculates the Agile Churn metric as follows:

Display of the Agile Churn metric in Velocity

In Velocity, the Agile Churn metric is displayed on the Dashboards and Value Streams pages:

  • Dashboards page: Agile Churn is displayed in the Dashboards by using a graph, which dynamically shows the average churn percentage over time. You can group by days, month, week, quarter, year or with custom dates.
  • Value Streams page: The Value Streams page shows the Agile Churn for changes in a specific value stream. It shows the percentage of churns in the value stream over the last 90 days.

    The result is presented on the Value Streams page, which helps stakeholders to view the overall stability and reliability of the deployment process for the value stream.