Lean Methods · Guide

What is Kaizen? Meaning and how to start

Kaizen means "change for the better" — small improvements made continuously by the people doing the work. This guide explains the meaning, the core principles, the difference between daily Kaizen and Kaizen events, and how to start in your own team.

Kaizen meaning

Kaizen is a Japanese word meaning "change for the better", commonly translated in business as continuous improvement — kai (change) and zen (good). As a way of working, it means everyone, not just managers or specialists, makes small ongoing improvements to their own work. It became widely known through the Toyota Production System and is one of the central ideas of Lean.

The core principles

Small improvements, made continuously, beat occasional big projects.
The people doing the work are the ones who see the waste.
Go and see the real work (Gemba) before deciding what to change.
Standardise a change once it works, so the gain doesn't slip back.
Blame the process, not the person.
Measure the effect, however roughly.

Daily Kaizen vs. Kaizen events

Daily Kaizen is one small change at a time, ongoing, done by the team in their own work. A Kaizen event (or Kaizen blitz) is a focused two-to-five-day workshop where a cross-functional team maps one process and implements improvements immediately. Events create momentum; daily Kaizen keeps it.

How to start Kaizen in your team

Pick one process and make it visible. Draw how the work flows today.
Ask the team where the friction is. Collect irritations, not solutions.
Choose one change you can test this week. If it needs a budget, it's a project, not a Kaizen.
Run it as a PDCA cycle. Plan, do, check, act — standardise or drop it.
Make the rhythm routine. A 15-minute weekly review sustains Kaizen better than an annual workshop.

Why Kaizen programs stall

Ideas are collected but never closed, so people stop submitting them.
Only managers decide what gets improved.
Improvements aren't standardised, so the old way returns.
The rhythm depends on one enthusiast.

FAQ

What is the meaning of Kaizen?

Kaizen is Japanese for "change for the better" — a way of working where everyone makes small, ongoing improvements rather than relying on occasional large change projects.

What is a Kaizen event?

A focused workshop, typically two to five days, where a cross-functional team maps one process, identifies waste, and implements improvements immediately.

Is Kaizen the same as Lean?

No. Lean is the broader system of thinking about value and waste; Kaizen is the improvement habit inside it.

Does Kaizen only work in manufacturing?

No. Wherever a process runs more than once — services, healthcare, software, administration — small improvements compound.