Most organisations reflect.

They run:

• retrospectives
• lessons learned sessions.
• post-implementation reviews

 

But most of it does not change behaviour.

It produces narrative — not learning.

What Hansei actually is

Hansei is not reflection for understanding.

👉It is reflection for correction, accountability, and change.

In practice, this means:

• success is examined as critically as failure.
• outcomes do not validate the process.
• assumptions are surfaced and assessed.

From Toyota:

• reflection occurs even when things go well.
• problems must still be identified.
• “No problem is itself a problem.”

The difference most organisations miss

Reflection	Hansei
What happened?	Why did it make sense at the time?
What worked?	What was fragile?
What do we record?	What do we change?

What Hansei actually looks like in practice

Hansei is uncomfortable because it shifts focus:

👉 from events → to judgement

1. Ownership of outcome

Where did my judgement contribute to this outcome?

Not:

• the system,
• the process,
• external conditions.

👉 You, Your judgement!

2. Assumption exposure

What did I believe to be true when I made this decision?

This is critical.

Most errors are not due to a lack of knowledge.

👉 They are due to unexamined assumptions

3. Decision traceability

Why did this decision make sense at the time?

If you cannot answer this:  you cannot learn from it.

4. Outcome vs process separation

Did the outcome validate the thinking—or mask a flaw?

Success is the most dangerous condition.

👉 It can hide weak judgement.

5. Behavioural correction

What will I do differently next time?

Not: what we learned, but what changes in action.

Where Hansei sits (SECI)

Hansei is the pressure point between:

👉 Internalisation → Externalisation

Where:

• experience becomes insight.
• insight becomes knowledge.

Without Hansei:

• experience accumulates.
• knowledge grows.

But error remains embedded.

Link to Learn, Transform and Navigate — Mallory’s stance.

Mallory doesn’t allow reflection to drift.

He forces it into accountability.

From Lead, Transform and Navigate:

👉 Decisions are not evaluated by intention,
👉 They are evaluated by consequence. using an ethical lens.

Hansei, in his terms: “If this fails, who is accountable?”

What most organisations actually do

Most organisations do not avoid reflection.

They run it regularly.

But the reflection stays at a safe distance.

It focuses on:

• What happened?
• What worked?
• What did not?
• What might we improve?

As an IT practitioner for decades, I’ve witnessed many post-implementation reviews. Most followed the same pattern.

They were run:

• Within months after project close.
• Before outcomes had stabilised.
• Before unintended consequences had surfaced.

They became:

• a retrospective
• a narrative
• and sometimes, an excuse for a celebration

But not Hansei.

What it avoids is this:

• Who made the judgement?
• Why it made sense at the time.
• What would that person do differently now?
• What were the consequences of our action?

In contrast, in Toyota, even the most successful project is subjected to the same question:

“What could we have done better?”

Success is not evidence of good judgement.

It may simply mean the consequences have not arrived yet.

What “avoiding accountability” looks like

It shows up in subtle ways:

1. Language shifts responsibility

• “The system didn’t support it.”
• “The process broke down.”
• “Communication could have been better.”

But no one owns the decision.

2. Outcomes may have been discussed, not decisions

• What happened is analysed.
• But the thinking behind it is not.

Do we question:

• Has there been sufficient time for the real impact to be assessed?
• How honest is our critique, are we avoiding things we don’t want to see?

The real danger here is that judgement is left untouched.

3. Success is left unexamined

• If the outcome appears good,
• The process followed is assumed to be sound,

The real danger here is that weak assumptions remain hidden.

4. Actions are assigned, not behaviours changed

• “We’ll improve communication.”
• “We’ll refine the process.”

But no one commits to thinking and acting differently.

What does real accountability inside reflection mean?

Hansei forces a distinct set of questions:

👉 not:

• what happened

👉 but:

• Where did my judgement shape this outcome?
• What did I assume that proved incomplete?
• Why did that decision make sense at the time?
• What will I do differently next time?

 The difference

Without accountability	With accountability
Reflection describes events	Reflection examines judgement
Responsibility is diffuse	Responsibility is owned
Learning is recorded	Learning changes behaviour
Errors persist quietly	Errors are exposed and corrected

 

Reflection without accountability protects assumptions.
Reflection with accountability exposes them.

Without Hansei, learning continues.
But it does not correct itself.