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Field notes from the floor.

The thinking, the proof, and the deeper research behind authentic TPS deployment.

Field Notes

From the shop floor. Not the conference room.

Practical writing on Toyota Production System implementation, kaizen, Jishuken, standardized work, and the realities of operational transformation — from OMDD & TSSC trained practitioners.

Featured · Field Note

What happens to the people your improvement frees up?

The line that needed six now needs four. Two people are standing there, and what you do next is your real improvement policy — everything else is a poster.

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Field Note
Ask the question.
Then stop talking.

The Silence After the Question

A good coaching question at the board lives about four seconds. Why managers fill the silence, what it costs, and how to leave the thinking with the people who do the work.

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Field Note

Conform or Resist

Standardized work is conformity. Kaizen is resistance. TPS demands both — most transformations install only the half you can install.

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Point of View
Lean is not the objective.
Factory performance is.

Lean is not the objective. Factory performance is.

The next generation of Lean consulting should start with the factory's performance problem—not the Lean toolbox.

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Field Note

They didn't need another kaizen event. They needed to learn how to manage.

Kaizen events deliver a step-change, then the gains quietly erode. The fix isn't another event — it's the management system that turns a sawtooth into a staircase.

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Field Note

Which comes first — the management system or kaizen?

Kaizen isn't a thing you schedule beside a management system. It's what one produces. The order that actually works: stabilize, standardize, manage, then improve.

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Field Note

The 90-Day Output Recovery System

A Toyota-based execution system for manufacturers missing output, fighting chronic downtime, or struggling to sustain improvement.

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Field Note

Why Fourtre? TPS consulting vs. the alternatives

Every alternative can produce a spike. The difference is what's left behind — capability that stays.

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Latest from the blog

More field notes.

Fresh posts from the floor — published straight from our desk.

Selected case studies

Proof on the floor.

Authentic TPS applied to real operations — and the numbers that followed.

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The 8-Phase Factory Performance System

A TPS operating system, built phase by phase.

Grounded in the same TSSC model-line methodology Toyota uses to develop suppliers. We don't drop tools — we stand up a system that compounds.

Design your model line →
From diagnosis to standardized work
1Gemba AssessmentTwo-day floor evaluation
2Value-Stream StabilizationExpose the real constraints
3Model-Line BuildProve flow on one line
4Jishuken KaizenIntensive improvement events
5Standardized Work & LeadershipTeam & Group Leader development
Phases 6–8 · OEE/TPM · Hoshin cascade · Self-sustaining
Limited diagnostic availability

Hard problems on your floor? #they're not like us

Start with a two-day gemba assessment. We'll show you where the hidden capacity is — and what recovering it is worth.

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