What is Kaizen?

Kaizen is a Japanese term commonly translated as continuous improvement. In organizations, it means involving people in examining everyday work, identifying problems, testing improvements, and learning from the results.

Kaizen is an ongoing practice. Small changes made by the people doing the work can improve quality, safety, flow, and customer value. Leaders support this by making time for improvement, helping remove obstacles, and treating problems as opportunities to learn.

A Kaizen event is one way to concentrate improvement effort. During a focused period, often several days, people from the relevant parts of a process study a specific problem, test changes, and establish how results will be measured and sustained.

An event can accelerate progress, but lasting improvement requires follow through. Everyday Kaizen continues after the workshop through observation, feedback, and further experiments.

Further reading: Lean Enterprise Institute: Kaizen

Why it matters

Everyday improvement gives the people doing the work a way to reduce friction and strengthen quality and value.

Example

Imagine a service team noticing that incomplete requests repeatedly wait for clarification. The people doing the work examine recent cases and identify two details that are frequently missing. They test a simpler request form with prompts for those details, then observe clarification messages, waiting time, and whether customers find the form harder to use. One prompt helps; another causes confusion and gets rewritten. The team shares the result and looks for the next recurring obstacle. Kaizen appears in this continuing habit of noticing, testing, and learning. A small change matters when evidence shows it improves the work and can be sustained.

Common misunderstanding

Kaizen is sometimes reduced to a concentrated event or a demand that employees make endless small efficiency gains. An event can produce an initial improvement while the everyday conditions that created the problem remain, causing the gains to fade.

Make time for people to examine work, test changes, and sustain what helps. Leaders need to support learning and address obstacles beyond the team's control. Small improvements are valuable, but they do not excuse ignoring a larger structural problem or shifting more pressure onto people already carrying too much work.

Related terms

Lean · Retrospective · Kanban

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