kōgu

5S

Audit a physical or digital space against five Japanese rules of order.

Use it whena workspace or process has become cluttered and slow.

Origin
Toyota Production System, codified by Hiroyuki Hirano, 1995
Time
30 to 60 min
Works
Solo or group
Loading the workspace
§1

Abstract

5S comes from Japanese factories, where a clean, orderly workplace was treated as a condition for quality. Each S stands for a Japanese word: seiri (sort), seiton (set in order), seiso (shine), seiketsu (standardize) and shitsuke (sustain).

It works on any shared space where things pile up, whether that's a workbench or a shared drive. You score the space against each of the five, fix the weakest first, and audit again later to see whether the improvement held.

§2

Method

  1. 01

    Pick one area

    Choose a space small enough to finish, like one workbench or one shared folder, and note who uses it.

  2. 02

    Sort (seiri)

    Take out everything that isn't needed for the work done here. If you're not sure, tag it and set a date to decide.

  3. 03

    Set in order (seiton)

    Give everything that's left a clear place, with the things you use most closest to hand.

  4. 04

    Shine (seiso)

    Clean the area and look closely while you do. Cleaning is when you spot wear and small faults early.

  5. 05

    Standardize (seiketsu)

    Write down or photograph how the area should look, and say who keeps it that way.

  6. 06

    Sustain (shitsuke)

    Audit on a schedule and fix whatever has slipped. Compare each audit with the last one.

§3

When to use it

  • People waste time hunting for things in a shared space.
  • A shared drive or codebase has grown cluttered and it's hard to find anything.
  • You want a tidy starting point before improving a process with something like PDCA.
§4

Common pitfalls

  • Treating it as a one-off clean-up. Without the last two steps, the mess is back within weeks.
  • Deciding the layout without the people who use the space. They know which things they actually reach for.
  • Aiming for a space that looks tidy instead of one where the work goes faster.
  • Auditing everything at once. Finish one area before starting the next.
§5

Origin and references

Attributed to Toyota Production System, codified by Hiroyuki Hirano (1995).

  1. Hirano, H. (1995). 5 Pillars of the Visual Workplace: The Sourcebook for 5S Implementation. Productivity Press.
  2. Osada, T. (1991). The 5S's: Five Keys to a Total Quality Environment. Asian Productivity Organization.
§6

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