What measurement indicates the completion rate of User Stories?

The completion rate of User Stories in Agile methodologies is best indicated by velocity. Velocity measures the amount of work a team can complete during a sprint, expressed in terms of story points, which are assigned to User Stories based on their complexity and effort required. By tracking velocity over multiple sprints, teams can assess their capacity and predict how much work they can complete in future iterations.

This metric is crucial for understanding productivity and helps teams make more informed decisions about their workload and planning. As teams increase their knowledge and experience, their velocity may change, reflecting improved efficiency or accuracy in estimating their work. In contrast, the other metrics mentioned do not specifically measure the rate of completed User Stories in the same way. Although burndown rate visualizes remaining work over time, it does not provide a direct measurement of completion. Lead time and cycle time focus more on the duration of tasks rather than completion rates.