Gemba observation and fact-based management

Learning objectives

• Explain why gemba observation beats reporting alone.
• Prepare and run a structured gemba walk on a garment floor.
• Turn observations into fact-based improvement questions.

Go and see, not go and blame

Gemba means the real place where work happens. A gemba walk is a structured visit to that place to understand the process by watching it, not to catch operators making mistakes.

The output of a gemba walk is a list of fact-based questions and observations, not instant orders. Orders given at gemba usually break someone else’s standard work.

A twenty-minute gemba structure

• Five minutes: watch flow from receipt to output at one segment.
• Five minutes: talk with one operator about what is easy and what is hard.
• Five minutes: read the boards, the andon and the last four hours of data.
• Five minutes: write three observations and three questions.

Garment-factory example

A gemba visit to a washing line shows two operators lifting a heavy load basket unassisted, an andon light that has been red for 30 minutes with no response and a takt board that has not been updated since morning. Rather than issue orders, the leader logs three questions and gives the supervisor 24 hours to answer them together with the operators.

Method

1. Announce the visit and its purpose to the supervisor in advance.
2. Stand still and watch one cycle end-to-end before asking anything.
3. Ask “what gets in your way?” before “why is this defect happening?”
4. Close the loop within one week or the shop floor stops answering honestly.

Common mistakes

• Turning gemba into a surprise inspection.
• Issuing corrective orders on the spot without checking standards.