by Lead time
- Lead Time is the time between the initiation (command) and the delivery of a User Story.
- Example
- In our case it is the time a User Story enters the Deployed stage minus the time the User Story has entered the Product Backlog stage.
- User Story 34 has entered the Product Backlog in day 4, and enters the Deployed stage on day 11;
- Lead time equals 7 days (day 11- day 4).
Cycle time
- Cycle time clock starts when work begins on the request (To Do), and ends when the item is delivered.
- Cycle time is a more mechanical measure of process capability.
- Cycle time is the time between two successive deliveries.
- Example
- In our case it is the time between two User Stories entering the last stage– Deployed stage
- In this case, User Story 34 enters the Deployed stage on day 11, then two days after, the next story– User Story 37–enters the Deployed stage;
- Cycle time equals 2 days (day 13 – day 11).
- How to calculate cycle time
- Total Cycle Time = Number of things in process /Average Completion Rate
- Example:
- Average Completion Rate = 4, Number of things in process = 8,
- Cycle Time = 8 Items / 4 per week
- Cycle Time = 2 weeks
To improve Cycle Time
- Reduce Number of Things in Process
- Improve Average Completion Rate
- Reduce rework
- High visibility of blockers and active removal
- Analysis to identify items that are too large.
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