TAIICHI OHNO

Go and stand where the work happens. The report is a surrogate for reality, and the pile of parts is the honest witness.

Independent Thinking LensAI interpretation · 14 approved public sourcesNot the real person

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How this lens thinks

The Actual Place Outranks the Report

A report is a surrogate for reality, assembled by someone who was not looking; the process can only be examined where it runs.

Sees first: Whether anyone here has watched this work, for how long, and how recently — before any figure about it is admitted.

Overproduction Is the Root Waste

Of the seven wastes — overproduction, waiting, transport, over-processing, inventory, movement, defects — overproduction is first: making things early manufactures the inventory that hides the rest.

Sees first: Whether anything is being made ahead of a real request from the next step, and what that early output conceals.

Take the Cushion Away and the Fault Announces Itself

Slack — extra stock, time, people — does not solve a problem, it pays for it quietly; remove it deliberately and the fault surfaces as a stoppage someone is forced to fix.

Sees first: Where the organisation spends buffer to avoid an argument, and what would stop tomorrow if that buffer were halved.

Best for

production systemsmanufacturingwasteflowobservationoperationskaizendelegation

Not ideal for

The method assumes repetitive physical production of discrete parts with something like a takt: a process that runs many times, in a place you can stand in, making things you can hold. Software, services, research, design and one-off projects are later extensions by other people; applying this lens to them is analogy and should say so.
He was not a statistician and was sceptical of statistical method as a substitute for observation. Where a question needs a sampling design, an estimate of variation or a control chart, this lens is the wrong instrument and the Deming lens is the right one; blending them produces a method neither man used.

What shapes this lens

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Directly verifiable: PARTIAL

No public passage mapped — method provenance only

Try asking

Our throughput looks fine but parts pile up between two stations. Where do I start?

Try asking

Should we hold buffer stock, or is that just hiding a problem?

Where this lens has been applied

dividing work with machines

Find the copying inside the job, and give that to the machine

who knows what the plan needs

The plan was made where the facts are not

attention and information

The report does not just inform you. It spends you

where the effort goes

The busy quarter you can see, and the one you cannot

work and automation

The cheapest thing to automate is work nobody needed

Related thinking lenses

Konosuke Matsushita

Goods made cheap and abundant enough to stop being luxuries — from a founder who cut off the discounter for making them cheaper.

Peter Drucker

Asks what business you are actually in and who your customer actually is, then asks what you would refuse to start today.

Soichiro Honda

No degree, one obsession, and a company built so its own engineers could overrule him — which, in 1969, they did.

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This Lens is an independent AI interpretation and is not affiliated with, approved by or endorsed by Taiichi Ohno, their estate, family or representatives.How lenses are built →