Working thesis Public operating model Evidence-bound

Manish Sharma / working method

Industrial AI for Decisions That Need Evidence

My working method: Sense -> Model -> Decide -> Verify

I use this method because a prediction alone does not finish the industrial job. The output has to be tied to what it observed, the assumptions that may limit it, the decision under consideration, and the evidence that can responsibly check the outcome. LMD/DED is the current proving ground where I can test that discipline in public.

Four-stage loop

Sense, Model, Decide, Verify

This is my practical operating model for industrial-AI work, not a claim to own a new discipline.

Operating loop

Sense -> Model -> Decide -> Verify

Signals, assumptions, bounded decisions, and verification evidence.

Illustrative workflow. Read left to right; Verify is the evidence boundary.

Confidence is not approval. The loop is useful only when process signals, model assumptions, decisions, and verification evidence stay separate.

  1. 01

    Sense

    Collect signals, process data, context, operator observations, and missing-information cues.

  2. 02

    Model

    Combine machine learning, engineering rules, uncertainty, constraints, and traceable assumptions.

  3. 03

    Decide

    Structure recommendations, trade-offs, risk priorities, next actions, and human-review boundaries.

  4. 04

    Verify

    Connect decisions to inspection, measured outcomes, feedback loops, and physical evidence.

Use Sense for observed inputs, Model for assumptions and uncertainty, Decide for bounded recommendations, and Verify for inspection, testing, documentation, measured outcomes, and expert review.

Stage links

Connect each stage to a source, framework, or tool

The method is useful only when it routes readers to concrete LMD/DED resources and an explicit verification path.

Principles

Decision support has to keep uncertainty visible

The model is useful only when the decision path remains inspectable.

A signal is not proof.
A model output is not automatically an engineering decision.
Missing information should remain visible.
Confidence should not hide uncertainty.
Human review must be explicit where risk requires it.
Verification must match the consequence of failure.
Useful industrial AI creates traceability, not only predictions.

Interactive explainer

Signal is not proof.

Select a signal. The useful question is not whether the signal is interesting; it is what the signal can suggest, what it cannot prove, and what evidence closes the loop.

Selected signal

Melt-pool image feature

What it can suggest:

possible process drift, instability, spatter, geometry change, or review point

What it cannot prove:

final material quality, fatigue behavior, or service safety

Evidence needed next:

  • dimensional inspection
  • NDT where risk requires it
  • material testing or metallography when acceptance depends on it
  • expert review

Confidence is not approval. Monitoring can support review; it does not replace inspection, testing, expert review, or release evidence.

What changes the decision

Monitoring signals need context before they become useful

A signal becomes more useful when it can be tied to inspection, calibration, repeatability, and acceptance criteria.

Correlation with inspection
Drift history
Sensor calibration
Image quality
Process repeatability
Acceptance criteria

Applied proof

LMD / DED is my current proving ground

My strongest public technical context is AI for Laser Metal Deposition and Directed Energy Deposition at Exafuse. It is where this method meets physical signals, materials, robotics, repair, and inspection.

Process monitoring

Signals from LMD/DED systems can expose instability candidates, drift, and review points.

Melt-pool signals

A melt-pool signal can support awareness, but it does not prove final part quality by itself.

Bead geometry

Geometry indicators can guide process review and machining planning when tied to inspection evidence.

Repairability screening

Material, damage, access, tolerance, inspection, and criticality must remain visible before a recommendation hardens.

RFQ preparation

Known facts, missing information, assumptions, risks, and next steps should be separated.

Process route selection

LMD, DED, cladding, SLM/LPBF, machining, replacement, or no repair should be compared with explicit trade-offs.

Inspection evidence

Dimensional checks, NDT, material evidence, and expert review close the loop where risk requires it.

Use with

Public resources that make the thesis practical

These links connect my working method to existing LMD/DED frameworks, evidence, and RFQ resources.