From Recording Expertise to Reproducible Decision-Making — How Decision Trace Model × Multi-Agent Transforms Knowledge Transfer in Manufacturing

Introduction

Manufacturing is now at a major turning point.

  • Retirement of veteran engineers
  • Severe labor shortages
  • Increasing complexity of products and processes

What has supported the field until now is:

👉 Human judgment embedded in individuals

However, this foundation is now being lost.


The Limits of Traditional Knowledge Transfer

Many companies have long worked on knowledge transfer:

  • Manuals
  • Procedural documents
  • Training videos and educational content

Yet, the following challenges remain:


① Unwritten Decisions

  • Why was this action taken?
  • Under what conditions would the decision change?

👉 Tacit knowledge is lost


② Knowledge That Is Not Used

  • Too busy to check
  • Hard to find

👉 Knowledge becomes unused assets


③ Non-Reproducible Decisions

  • Same procedure, different results

👉 Knowledge fails to function


④ Expert “Intuition” Cannot Be Reproduced

  • Subtle anomalies
  • Experience-based judgment

👉 Cannot be formalized


The Core Problem

The root cause of these issues is:

👉 Knowledge is stored as information,
not as a process of judgment


Most knowledge captures:

  • Results (what was done)
  • Procedures (how it was done)

But in reality, what matters is:

  • How the situation was interpreted
  • What options were considered
  • Why a specific action was chosen

👉 The flow of thinking and judgment


Ultimately, this leads to:

👉 Decision-making


However, current knowledge systems store:

  • Results → retained
  • Decision process → lost

As a result:

  • Decisions cannot be reproduced
  • Knowledge is not utilized

Decomposing “Intuition” into Structure

Expert judgment is often called “intuition.”

But in reality, it is not vague.

👉 It is the result of multiple evaluation processes integrated at high speed


For example, in equipment failure handling:

What happens in an expert’s mind:

  • “This vibration is unusual”
  • “I’ve seen something similar before”
  • “This may lead to failure”
  • “Stopping now will impact production”
  • “Safety limits are near”

👉 All evaluated simultaneously


Thus, intuition is:

👉 Not a single decision,
but a multi-layered integration of evaluations


Key Insight

These evaluations are:

👉 Integrated and compressed in the human mind

  • Individual judgments exist
  • But cannot be externally decomposed

👉 This “compressed judgment” is what we call intuition


Why It Cannot Be Reproduced

Traditional knowledge systems:

  • Record only final actions
  • Do not capture intermediate evaluations

👉 Only compressed results are stored
👉 Internal structure is lost


Thus:

👉 The reasoning process becomes a black box


Resulting in:

  • Inconsistent decisions
  • Inability for newcomers to reproduce
  • No continuous improvement

Decomposition via Multi-Agent

Decision Trace Model × Multi-Agent:

👉 Decompresses “intuition” into structured processes


Expert judgment is:

👉 A compressed integration of multi-layer evaluations

DTM × Multi-Agent:

👉 Expands it into role-based processes


Decomposed Structure

  • Signal Agent
    State recognition (anomaly detection, feature extraction)
  • Diagnosis Agent
    Cause estimation
  • Decision Agent
    Action selection
  • Policy Agent
    Constraints (safety, quality rules)
  • Risk Agent
    Risk evaluation
  • Execution Agent
    Action execution

👉 These were originally integrated unconsciously in experts


What Changes

Through decomposition:

👉 Compressed judgment becomes visible structure


Traditional:

👉 Intuition = too integrated to analyze

DTM × Multi-Agent:

👉 Intuition = a set of decomposable processes


👉 Invisible structure becomes manageable


The Most Important Point: Logging

The key transformation is:

👉 The decomposed process is recorded as-is


Traditional:

  • Only final actions remain
  • Thought process disappears

DTM:

  • What signals were observed
  • What hypotheses were considered
  • What constraints were applied
  • What risks were evaluated
  • Why a decision was chosen

👉 Everything is recorded as a process


Fundamental Differences from Traditional Knowledge

DTM × Multi-Agent transforms knowledge itself.


① Structuring Tacit Knowledge

Traditional:

  • Experience remains personal
  • Reasoning is not recorded

New:

  • Signal
  • Evaluation
  • Decision
  • Policy / Risk

👉 Fully recorded


② Reproducible Decisions

Traditional:

  • Decisions vary by person

New:

  • Same input → same decision process

👉 Reproducibility ensured


③ Real-Time Knowledge Utilization

Traditional:

  • Search manuals

New:

  • AI retrieves relevant decision traces

👉 Knowledge used in real-time


④ Continuous Learning

Traditional:

  • Static knowledge

New:

  • Logs accumulate
  • Patterns evolve
  • GNN optimizes structure

👉 Decisions evolve


⑤ Robust Operations

Traditional:

  • Black-box decisions
  • High risk

New:

  • Policy + Risk + Human boundary

👉 Safe and accountable decisions


Practical Use Cases

Equipment Failure

Event → Signal → Diagnosis → Risk → Policy → Decision

👉 Reproducible responses


Quality Issues

Signal → Diagnosis → Decision → Log

👉 Structured knowledge accumulation


Process Improvement

Signal → Diagnosis → Evaluation → Decision

👉 Reusable improvement logic


Training

  • Decision traces shown
  • Reasoning visualized

👉 Learn how to decide


Business Impact

  • Faster knowledge transfer
  • Stable quality
  • Increased productivity
  • Reduced risk
  • Competitive advantage

Conclusion

Decision Trace Model × Multi-Agent:

  • Visualizes decisions
  • Enables reuse
  • Drives continuous evolution

It transforms knowledge from:

👉 Something to read

into:

👉 Something to act upon


The essence is:

👉 Redefining knowledge itself


Traditional:

👉 Knowledge = documents

New:

👉 Knowledge = decision systems


What matters is not:

👉 What you know

but:

👉 How you decide


Ultimately:

👉 Intuition becomes a reproducible organizational asset


Final Message

The future of manufacturing is not about preserving knowledge.

👉 It is about reproducing decisions.


Decision Trace Model × Multi-Agent transforms manufacturing into:

👉 A system where decisions are accumulated, reused, and evolved.


This is the structural transformation it brings.

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