Lean manufacturing · Kaizen
The PDCA cycle: the order behind Kaizen
Plan, do, check, act. Where each step of the cycle sits in an improvement record.
13 October 2026 · 1 min
Kamishibai: layered process audits with cards
A few questions a day, each management layer at its own frequency. A way to see whether standards are really followed on the floor.
5 October 2026 · 1 min read
Kamishibai checks regularly, with short cards, whether a standard is being followed. Layers go to the floor at their own frequency: team leaders daily, area owners weekly, plant managers monthly, for example.
How does a card work?
- A card holds a few questions: standard work, safety, a quality checkpoint.
- The auditor draws the card and answers on the floor.
- If compliant, the card returns green side up; otherwise red, and an action is opened.
- The board also shows which cards were not drawn this period.
Kamishibai on a phone
Cards and layers are company settings. In the field view the auditor opens the next card, answers and opens an action with a photo if needed. The board view shows every card's status by colour.
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