What Is Value Stream Mapping? A Practical Guide for 2026

Value Stream Mapping (VSM) is one of the most powerful tools in the Lean Six Sigma toolkit. Originally developed as part of the Toyota Production System, it provides a visual representation of every step involved in delivering a product or service to a customer.

Why Value Stream Mapping Matters

Most processes contain far more waste than organisations realise. Studies consistently show that in a typical process, only 5-10% of total lead time is spent on value-adding activities. VSM makes this visible by capturing both the flow of work and the time spent at each stage.

The Two States

A VSM exercise typically produces two maps:

• Current State Map — documents how the process works today, with real data on cycle times, wait times, and defect rates.
• Future State Map — designs the improved process, eliminating waste and reducing lead time.

Key Metrics to Capture

For each process step, you should record:

• Cycle Time — the time spent actively working on the item
• Wait Time — the time the item sits idle before the next step
• Value-Add — whether the customer would pay for this step
• Defect Rate — the percentage of items requiring rework
• Resources — who or what performs this step

Getting Started with MapVS

MapVS simplifies the mapping process with industry templates, automatic analysis, and real-time bottleneck detection. Start with one of our 16 industry templates or import your own data via CSV.