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Lean Manufacturing Maturity Self-Assessment

Lean maturity is easier to improve when you know where you stand. This ten question self-assessment covers workplace organization, flow, pull, standard work, quality, reliability, leadership and people. It returns a band with practical next steps.

0 of 10 answered0%

1. How would you describe workplace organization (5S) in your main production area?

2. How well do you understand your value streams?

3. How is production pace set?

4. How are materials replenished at the line?

5. How is the work method standardized?

6. How are changeovers handled?

7. How do you respond to quality problems?

8. How is equipment reliability managed?

9. How do leaders spend time on the shop floor?

10. How do you involve employees in improvement?

How to use the assessment

Answer for your main production area, not the best cell you can show visitors. Better still, have three or four people answer independently, such as a supervisor, an engineer and an operator, and compare. Large differences between answers are useful: they show where practice differs from what management believes. Repeat the assessment every six to twelve months to track progress.

What the score means

Each answer scores from zero to four and the total is converted to a percentage of the maximum. The bands are a simple guide, not a certification. A low score does not mean failure; it points to the next foundation to build. A high score in tools but low score in leadership routines often signals that improvements will not last.

Below 30: build basics such as 5S and measurement.
30 to 54: standardize and sustain.
55 to 79: connect tools into a system.
80 and above: extend and keep auditing.

Where ERP and data help

Several of the questions depend on data you may already hold. Takt time needs customer demand from sales orders. Kanban sizing needs consumption history. OEE needs downtime and count data. Changeover time needs timestamps. If your ERP routings still carry outdated setup and run times, lean improvements will not be reflected in planning, so plan to update the master data after each proven improvement.

Common mistakes

The most common mistake is scoring aspirational practice rather than current practice. Another is treating the assessment as a ranking between plants instead of a conversation starter. Avoid choosing tools to raise the score; choose the next improvement that removes the largest flow problem, and let the score follow.

Frequently Asked Questions

Is this an official lean certification?

No. It is a simple self-assessment designed to start a conversation and highlight focus areas. It is not an audit or a standard, and different organizations use different maturity models.

Who should complete it?

Ideally several people from different levels, such as a plant manager, a supervisor and an operator, answering independently. Comparing the answers reveals gaps between perceived and actual practice.

How often should I reassess?

Every six to twelve months is common. More frequent assessment rarely shows meaningful change, because culture and systems take time to move. Between assessments, track specific metrics such as OEE, lead time and first pass yield.

Does a low score mean lean will not work for us?

No. A low score only describes where you are today. Lean is usually adopted step by step, beginning with visible basics such as 5S, measurement and standard work, and building up to flow, pull and leadership routines.

If your lean data lives in the ERP and several spreadsheets, we can discuss a private way to query it together and keep the results on your own infrastructure.

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