चरण-दर-चरण निर्देश
Gather Your Inputs
First, identify your team's throughput and lead time. Throughput is usually measured in tasks per week or tasks per day, while lead time is measured in days or weeks. For example, let's say your team's throughput is 5 tasks per week and your lead time is 10 days.
Convert Lead Time to Same Unit as Throughput
Next, convert your lead time to the same unit as your throughput. If your lead time is 10 days, and your throughput is measured in tasks per week, you need to convert 10 days to weeks. There are 7 days in a week, so 10 days is equal to 10/7 = 1.43 weeks.
Apply the Formula
Now, plug in your numbers into the formula: WIP Limit = Throughput x Lead Time. Using the example from step 1, WIP Limit = 5 tasks/week x 1.43 weeks = 7.15 tasks. Round this number to the nearest whole number, as you can't have a fraction of a task. So, your optimal WIP limit is 7 tasks.
Calculate Cycle Time
Cycle time is the average time it takes for a task to move from start to finish. To calculate cycle time, you need to know your WIP limit and throughput. The formula for cycle time is: Cycle Time = WIP Limit / Throughput. Using the example from step 3, Cycle Time = 7 tasks / 5 tasks/week = 1.4 weeks.
Calculate Flow Efficiency
Flow efficiency is the percentage of time that your team is actually working on tasks. To calculate flow efficiency, you need to know your lead time and cycle time. The formula for flow efficiency is: Flow Efficiency = Cycle Time / Lead Time. Using the example from step 4, Flow Efficiency = 1.4 weeks / 1.43 weeks = 0.98 or 98%.
Avoid Common Mistakes
When performing these calculations manually, make sure to avoid common mistakes such as using incorrect units for throughput and lead time, or not rounding your WIP limit to the nearest whole number. Also, keep in mind that these calculations are estimates and may vary depending on your team's specific workflow and processes.
Introduction to Kanban Board Calculator
The Kanban Board Calculator is a useful tool for teams to calculate their work-in-progress (WIP) limits and cycle time. While there are online calculators available, understanding how to perform these calculations manually is essential for a deeper understanding of the underlying principles. In this guide, we will walk you through the steps to calculate your WIP limits and cycle time manually.
Understanding the Formula
The formula to calculate the optimal WIP limit is: WIP Limit = Throughput x Lead Time. Throughput refers to the average number of tasks completed by the team per unit of time, while lead time is the average time it takes for a task to move from start to finish.
Step-by-Step Calculation
To calculate your WIP limit and cycle time manually, follow these steps: