In short: Value stream mapping (VSM) visualizes the flow of materials and information from order to delivery. It highlights waiting, inventory and non-value-adding steps so teams can design a leaner future state.
What does a value stream map show?
- Process steps and data boxes (cycle time, uptime, people)
- Inventory between steps
- Information flow from customer and planning
- A timeline comparing value-added time with lead time
How do you create one?
- Select a product family.
- Walk the process and map the current state.
- Identify waste and bottlenecks.
- Design the future state.
- Create an implementation plan.
Key takeaways
- Map the current state by walking the process.
- Compare value-added time with total lead time.
- Turn the future state into an action plan.
Frequently asked questions
Is VSM only for manufacturing?
No. It is widely used in healthcare, offices and services.
How long does mapping take?
A current-state map can often be drafted in one or two days.
What is a future-state map?
A design of how the process should flow after improvements.