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 choose 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 (VA and NVA) filled out for each step in the current state.
- You must have a second value
stream map with lean data (VA and NVA) filled out for each step in the future
state.
- In the
Current State Map table, choose the current state
map, then choose the shape data to add. In most cases, you should choose all
shapes because they all contribute to the total percentages of value-add and
non-value-add.
- In the
Future State Map table, choose the future state
map, then choose the shape data to add. In most cases, you should choose 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.