AiVibeIndustry 4.0 & Manufacturing Operations
Value Stream Mapping (VSM)
Value stream mapping is a lean technique for drawing the flow of materials and information needed to deliver a product, from supplier to customer, to expose waste, delays and inventory, and to design an improved future state.
A value stream map shows each process step with data such as cycle time, changeover time, uptime, number of operators and batch size, the inventory between steps, and the information flows that schedule production, such as orders, forecasts and kanban. A timeline along the bottom compares value-added time with total lead time, which usually reveals that products spend most of their time waiting. Standard icons represent processes, inventory, push and pull flows and transport.
The technique was popularised by Mike Rother and John Shook in the workbook Learning to See, based on Toyota's material and information flow diagrams. Teams first map the current state by walking the actual process, then design a future state with continuous flow, pull, levelled scheduling and a single pacemaker process, and finally create an implementation plan. VSM is used in manufacturing, logistics, healthcare and office processes.
VSM is most effective at the level of a product family, typically from receiving dock to shipping dock within one plant before extending to the wider supply chain. Its value lies in shared understanding and prioritisation rather than in drawing quality. Maps go out of date quickly, so they should be refreshed after major changes. Software tools exist, but walking the gemba remains essential.
Key points
- Maps material and information flows from supplier to customer.
- Compares value-added time with total lead time.
- Popularised by Rother and Shook's workbook Learning to See.
- Used to design a future state with flow, pull and levelling.
Where AiVibe comes in
AiVibe designs and manufactures the AiAmbA AI Factory as the OEM: edge devices plus AI agents that let people talk to PLC, CNC and robot controllers in plain language. Existing lines are retrofitted with edge devices, and a trained operator confirms every change an agent proposes.
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Related terms
- Lean ManufacturingIndustry 4.0 & Manufacturing Operations
- Seven Wastes (Muda)Industry 4.0 & Manufacturing Operations
- GembaIndustry 4.0 & Manufacturing Operations
- KanbanIndustry 4.0 & Manufacturing Operations
- Takt TimeIndustry 4.0 & Manufacturing Operations
- KaizenIndustry 4.0 & Manufacturing Operations