Introduction

Seiri, Seiton, Seiso, Seiketsu, and Shitsuke are the five pillars of the 5S methodology, a Japanese workplace organization system designed to improve efficiency, cleanliness, and standardization. It is widely used in lean manufacturing, offices, and other environments aiming for continuous improvement.

Here’s a breakdown of each:

1. Seiri (整理) – Sort

Meaning: Remove unnecessary items from the workspace.

Goal: Eliminate what is not needed. Example: Throw away broken tools, remove old files, or store infrequently used items elsewhere.

2. Seiton (整頓) – Set in Order

Meaning: Organize remaining items for easy access and efficient workflow.

Goal: A place for everything, and everything in its place. Example: Label storage bins, organize tools by frequency of use.

3. Seiso (清掃) – Shine

Meaning: Clean the workspace and equipment regularly.

Goal: Maintain cleanliness to spot issues (e.g., leaks, wear). Example: Daily sweeping, wiping down machines, removing clutter.

4. Seiketsu (清潔) – Standardize

Meaning: Develop standards and schedules for the first three S’s.

Goal: Make organization and cleanliness routine. Example: Create checklists, visual guides, or standard operating procedures.

5. Shitsuke (躾) – Sustain / Discipline

Meaning: Maintain and review standards through discipline and habit.

Goal: Make 5S a long-term habit and part of the company culture. Example: Regular audits, continuous training, and leadership support