Do you want to know where time, money, and energy are being lost in your production process? With Value Stream Mapping, you gain a clear overview of the value stream and where delays occur. In this blog, you will learn what a Value Stream Map is, why it is such a powerful model, and how you can get started with Value Stream Mapping yourself.
What is Value Stream Mapping (VSM)?
Value Stream Mapping (VSM), also known as a value stream analysis, is used to visualise a business process. The purpose is to identify and highlight waste within the process so that it can be eliminated. In this way, value stream analysis helps make processes more efficient. For example, VSM can optimise workflows, reduce lead times, and improve quality – all by identifying and eliminating waste. The goal of a Value Stream Map is therefore simple: to gain insight into how materials and information flow through a process, from raw material to finished product. VSM is often used as a starting point for Lean improvement initiatives, helping to uncover waste and create a concrete improvement plan.
Why use Value Stream Mapping?
Value Stream Mapping can be applied to any production process that involves repeated steps and handovers, making it a highly versatile tool. There are several key benefits for companies that implement VSM:
- Waste is identified more quickly. By eliminating waste, processes can be made far more efficient – for example, by reducing waiting times and preventing overproduction.
- Customer satisfaction improves. By streamlining processes and reducing waste, customers benefit from products that better meet their expectations and needs.
- Quality is enhanced. VSM makes it easier to identify potential issues and their root causes, allowing corrective actions to be implemented more quickly, improving overall quality.
- Lead times are reduced. Identifying and resolving bottlenecks enables shorter lead times and a faster response to customer demands.
- Efficiency, efficiency, and more efficiency. With Value Stream Mapping, you gain a deeper understanding of your processes. This allows inefficiencies to be recognised and reduced more quickly, continuously working step by step towards a more efficient operation.
The 4 steps of Value Stream Mapping
Creating a Value Stream Map may sound difficult, but it is simpler than it seems. A VSM model always follows four recognizable steps. Each step builds on the previous one, forming a continuous improvement cycle. By following these steps, your VSM model can be made complete:
Step 1: Choose a product family
Select a product or a complete product group to include in your VSM model. This allows you to focus on one specific part of your offering, making the analysis manageable and the results immediately applicable. Ask yourself which product or product group requires the most urgent or valuable improvement – that is your starting point.
Step 2: Map the current Value Stream
Document the current situation for the chosen product. The easiest way to do this is with a step-by-step plan, noting every action and every waiting time. The map should describe all steps required to deliver the finished product. Include processing times, waiting times, inventory levels, and how information flows. Use standard symbols in your VSM model so that everyone can understand it.
Step 3: Identify waste
Define the ideal situation for the product and map it across all steps. Then analyse the differences between the current state and the desired future state. This shows where bottlenecks exist and where action is needed. Design an improved version of the process, aiming for shorter lead times, lower intermediate inventories, and better information flow.
Step 4: Develop the ideal state and improvement plan
Set priorities for action points and implement the necessary improvements to achieve the target. Create a timeline showing deadlines, process times, and lead times to make progress visually clear. Over time, create a new Value Stream Map and start the cycle again—this is how continuous improvement is achieved.
The 5 principles of Value Stream Mapping
Value Stream Mapping originates from the Lean philosophy, which is based on five core principles. These principles guide the entire improvement process and are crucial to keep in mind when creating a Value Stream Map:
- Define value
Everything starts with the question: What is valuable to the customer? Value only includes what the customer is willing to pay for. Anything else is waste, even if it seems internally useful or necessary.
- Identify the value stream
Map all steps needed to deliver a product or service. Critically assess which steps add value, which are necessary but do not add value (e.g., regulatory requirements), and which are pure waste. The latter category is the first target for improvement.
- Create flow
Once waste is identified, ensure that the remaining steps flow smoothly. Eliminate waiting times, bottlenecks, and unnecessary actions. The product or information should ‘flow’ through the process without interruption.
- Introduce pull
In a pull system, production starts only when there is actual demand from the customer or the next process step. This prevents overproduction and excessive inventory. Produce only what is needed, when it is needed.
- Pursue perfection
Lean, and therefore VSM, is never finished. Each improvement generates new insights and opportunities. By continuously applying the five principles step by step, you move toward a perfectly efficient process. This makes VSM a recurring and sustainable improvement tool for your organisation.
Value Stream Mapping example
To give a clearer picture of how to fill in a Value Stream Mapping template, here is a complete VSM example:
Imagine a factory that produces cars and wants to identify waste to increase efficiency and optimise customer satisfaction. They decide to apply VSM. An example of a Value Stream Mapping process could be:
Step 1 – Choose a product family
A team of engineers is assembled to examine the production process. They make an initial decision: should they focus on producing the entire car or zoom in on a specific component? This definition is essential—the sharper the focus, the more actionable the results.
Step 2 – Map the current Value Stream
The team follows the full flow of materials and information through the production process. They map where materials are stored, how they are processed, and which machines are used. To keep findings clear and accessible, they use an online platform where deviations from the desired process are immediately visible.
Step 3 – Identify waste
While tracking the material flow, the team marks areas where waste occurs. They find overproduction, unnecessary waiting times, and transport steps that do not add value. All these observations are entered directly into the online platform so nothing is lost and the entire team shares the same view.
Step 4 – Develop the ideal state and improvement plan
After a thorough analysis, the result is a detailed map showing the current state of the process. Bottlenecks and improvement opportunities are clearly visible. Based on this, the team designs the ideal future Value Stream Map—an improved version of the process without the identified waste. This forms the basis for a concrete improvement plan with actions, responsibilities, and deadlines.
How to create your own Value Stream Map
VSM may sound technical, but with proper preparation, you can apply it yourself. Start by assembling the right team. A Value Stream Map is not created at a desk – it is done together with people who truly know the process, such as operators, team leaders, and process managers. Go to the shop floor to physically walk through the process. Note what stands out, measure times, and count inventories. Then start simply by filling everything into a standard Value Stream Mapping template. For each process step, collect at least the cycle time, setup time, utilisation rate, waiting time, and inventory level. Based on this data, create a concrete improvement plan with responsibilities and deadlines for each action point. Schedule a session immediately after the analysis to design the desired future state. Once improvements are made, ensure the new way of working is maintained. Digital work instructions, checklists, and visual management on the shop floor help secure and monitor the new standard.
Questions about Value Stream Mapping in the EZ-GO platform?
The EZ-GO platform from EZ Factory supports you at every step of your improvement journey. From recording standards to implementing improvements on the shop floor, structure is added to every activity. Want to see how VSM and digital continuous improvement come together in practice? Contact EZ Factory – we are happy to advise you on possibilities for your organisation.