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Field notes on operational excellence

Practical guidance on Lean Six Sigma, Industry 4.0, and digital transformation, written by the consultants who do the work.

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Lean SIRI, Explained: What the Assessment Actually Tells You

SIRI is the international standard for industrial maturity. Here’s what a Lean SIRI assessment measures, what the score means, and how to turn it into a roadmap.

June 18, 2026 · 6 min read