KATA — a systematic method for developing a lean mindset
Toyota KATA is a structured approach to building PDCA habits in leaders and employees. Improvement KATA + Coaching KATA = systematic development of problem-solving and continuous improvement capability.
Impact of Toyota KATA — field data
Results in manufacturing companies after 6–12 months of KATA practice:
Improvement KATA — 4 steps
1. Understand the challenge (vision)
The organisation's long-term challenge (e.g. OEE 95%, defects below 50 ppm).
2. Grasp the current condition
A factual description of the present — KPIs, patterns, process control.
3. Establish the target condition
A target condition for the next 2–8 weeks. Specific, measurable, achievable.
4. Experiment toward the target
PDCA cycles, learning from every experiment. Obstacles = learning opportunities.
Coaching KATA — 5 questions
| # | Question | Purpose |
|---|---|---|
| 1 | What is the target condition? | Recall the vision and target condition |
| 2 | What is the actual condition now? | A factual picture of reality |
| 3 | What obstacles are preventing you from reaching the target? | Identifying the real problems |
| 4 | What is your next step (PDCA)? | A specific experiment + hypothesis |
| 5 | When can we see what we have learned? | Time frame, follow-up coaching |
KATA coaching cycle — how often?
Recommended practice: 15 minutes of coaching every day (mentor with a junior colleague) for the first 90 days. After that 2–3× per week. Goal: KATA becomes a habit.
Case study — cable systems manufacturer (140 employees)
After 12 months of KATA practice: OEE 65% → 87%, FTQ 93% → 98,5%, number of pilots: 3 → 47/year. Investment: €0 (leaders' time only). Annual savings: ≈ 410.000 €.
KATA Foundation Training
2-day workshop + 90-day coaching pilot. A structured KATA implementation in your company.
Book the training →Frequently asked questions about KATA
What is the difference between Improvement KATA and Coaching KATA?
Improvement KATA = a problem-solving method (4 steps). Coaching KATA = a method for developing people's problem-solving capability (5 questions).
How long does it take for KATA to become a habit?
At least 90 days of daily practice. After 6 months it becomes the "way of working".
Is KATA suitable for small companies?
Yes. KATA needs only one mentor (lean coach) and a willing leader. Pilot in one department.
What ROI does KATA deliver?
Indirect — it builds capability. Typically 10–15× within 18 months (through improvements, not KATA itself).
Robert Krajnc
Lean consultant with 15+ years of experience in manufacturing and logistics.
→ LinkedIn profile→ Get in touch📖 Complete guide: For a systematic overview of all lean methods, an 18–36-month roadmap and case studies, read → Guide to lean methods.