Use the Value Stream Map Comparison form to compare the value stream of the current state to the future state. Because you can use a value stream map to focus on cycle times and to identify waste, it is a key tool in all lean projects.
Answers the questions:
- What is the total value-add for the current state?
- What is the total value-add for the future state?
- What steps in the process add value and what steps do not add value?
- Were non-value-add steps in the current state eliminated or modified in the future state?
| When to Use |
Purpose |
| End of project |
Document the effects of changes to the process on the percentage value-add and percentage non-value-add. |
Data
This form has no data requirements because you use it only to display data collected elsewhere.
Guidelines
You should select all steps from the value stream maps or equivalent portions of the two processes. Otherwise, the comparison will be biased by the use of incomplete and potentially unbalanced data.
How-to
- You must have a value stream map with lean data (CT, VA CT, NVA CT) filled out for each step in the current state.
- You must have a second value stream map with lean data (CT, VA CT, NVA CT) filled out for each step in the future state.
- In the Current State Map table, select the current state map, and then select the shape data to add. In most cases, you should select all shapes because they all contribute to the total percentages of value-add and non-value-add.
- In the Future State Map table, select the future state map, and then select the shape data to add. In most cases, you should select all shapes because they all contribute to the total percentages of value-add and non-value-add.
For more information, go to Insert and fill out a form.