Reaction Time, Cycle Time, and Lead Time
Lead Time = Reaction Time + Cycle Time. Reaction time measures how long a task sits in a not-started state (to do, backlog) before work begins. Cycle time measures how long work takes once started, until it is ready for delivery. Lead time measures the full span from task creation to completion.
11.6days
StrongWhat it means
A high reaction time usually points to friction in triage or prioritization before work even starts. A high cycle time points to bottlenecks once work is underway — code review queues, unclear requirements, or dependency waits.
What to consider
Check which component is driving the total. If reaction time dominates, the fix is typically in triage and backlog process, not developer speed. If cycle time dominates, look at review turnaround and in-progress work-in-progress limits.

