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Bronze | Silver | Gold »

Any product and service company can be assessed and Lean-certified based on maturity level, after passing a physical audit. But why would any company want to be certified? Lean standards offer the strategic tools and guidelines companies need to tackle some of the most demanding challenges of modern business. Lean standards ensure that businesses operate as efficiently and effectively as possible. They increase productivity and help companies capture new customers and access new markets using strategies and techniques such as end-to-end flow and just-in-time delivery performance.

The 3 Major Maturity Levels

Maturity is measured on a five-point scale, ranging from the lowest level “Iron” (1) to the highest level “Diamond” (5). Most companies we assessed, or around 97%, score in the range of 2-3-4, are therefore certified at Bronze-Silver-Gold level. Those three maturity levels can be described by the starting point, improvement focus, and the end-point. 

Maturity 2 | Bronze

  • Start: major effort to make the numbers
  • Focus: fire-fighting, de-bottlenecking
  • End: hot spots solved or contained

Maturity 3 | Silver

  • Start: targets met but requires extra effort
  • Focus: reducing waste, strain, variability
  • End: processes controlled, results predictable

Maturity 4 | Gold

  • Start: strong results but not yet automatic
  • Focus: systemizing and standardizing
  • End: processes linked, interfaces optimized

Assessing Maturity Level

At least two measurements are required to confirm that the audited organization has truly achieved the level of maturity as assessed by the Lean Audit score. The certification process is an extension of the auditing process, which provides both the baseline and subsequent progress measurements. And how does this work in practice? Suppose an organization measures 2.7 on the first assessment. This initial measurement does not warrant a certificate; rather, it establishes the baseline for a certificate. Several months later, the audit is repeated to determine progress relative to the baseline. As an example, consider the case study discussed earlier. Post-audit, the team was able to move the needle by +0.4 to 3.1 on the maturity scale, which justifies awarding a Silver certificate.

Certification Process

Lean Assessment Process

Five steps to get certified:

  1. Preparation: the sponsor specifies the purpose of the audit, to be either benchmarking, self-assessment, progress measurement, or opportunity discovery, and nominates the members of the audit team to include representatives from all key functions that make up the assessed site or value stream.
  2. Audit Tour: the members of the internal team walk together with the external auditor through their value streams in flow direction from input to output, evaluating people, processes, setup, and system.
  3. Checklist: the audit team meets in the conference room for a guided self-assessment, moderated by the external auditor or internal team leader. The moderator ensures that a certain level is selected only when all stated criteria are attained.
  4. Analysis: translating insights into improvements. Led by the external auditor or internal group leader, the team decides on an ambitious yet realistic advancement rate, taking the target minus baseline, divided by the number of years to accomplish the target.
  5. Certification: After the progress measurement is established, the team compares it against the goal they have defined during the previous audit. Two things must occur for certification: the target maturity has been attained at an advancement rate of +0.15 per year or higher.
Lean Certificate

Celebrating the Achievement

When certification occurs, the event should be formally communicated and celebrated in the same (or similar) fashion that a company celebrates when they meet a significant financial goal or capture a new valued client. Why celebrate? Because more mature companies do better than less mature ones, so an improving score in the Lean Audit—along with certification—suggest better operating results in the near future. Tracking maturity is like tracking atmospheric pressure with a barometer: it provides a clear indication of improving weather. Maturity gain, as established by the 20 Keys, is therefore a leading indicator that complements financial reports in an ideal way indicator that complements financial reports in an ideal way because they are comprised solely of lagging indicators. What does this mean? If a company makes fundamental changes to its setup or structure affecting capability, it will quickly be reflected in the maturity score, but it may take months or years for it to affect financial reports. The 20 Keys are therefore a kind of weather forecast for future operating performance.

Client Feedback

"The process of the audit itself is enlightening to all participants and as each answer is agreed within the team, gaps and next steps are very clear to them."

Lean Manager, Argentina