Toyota Way QA Process

This document defines the 25-point QA checklist used for validating all YAML Mode training scenarios. Based on Toyota Way manufacturing principles.

Philosophy

Every training run is treated as a manufacturing process where quality is built in, not inspected out:

PrincipleApplication
JidokaStop on defect (NaN/Inf halts training)
Poka-yokeSchema validation prevents configuration errors
Genchi GenbutsuGo and see - observe actual training metrics
AndonVisual alerts for anomalies
KaizenContinuous improvement via experiment tracking

The 25-Point QA Checklist

For every training scenario, validate these 25 points:

Category A: Safety & Ethics (5 points)

#CheckDescription
A1Human OversightOperator is present and andon system is active
A2Stop-MechanismProcess halts immediately on critical failure (NaN/Inf)
A3Data PrivacyInput data scanned for PII/PHI before ingestion
A4Bias CheckTraining data distribution verified for demographic parity
A5Impact AnalysisPotential downstream harm of model failure assessed

Category B: Data & Inputs (5 points)

#CheckDescription
B1Source IntegrityInput SHA256 hashes match manifest
B2NormalizationInput features scaled (0-1 or -1 to 1) correctly
B3SplittingTrain/Val/Test split is stratified and leak-free
B4AugmentationAugmentations are deterministic (fixed seed)
B5FormatData types (f32/f16) match hardware capabilities

Category C: Compute & Resources (5 points)

#CheckDescription
C1Resource CapMemory usage < 90% of available RAM/VRAM
C2Compute AffinityProcess pinned to correct CPU cores/GPU device
C3Thermal SafetySystem temperatures monitored during run
C4Energy BudgetEstimated energy cost < approved budget
C5ConcurrencyNo race conditions in multi-thread/multi-GPU dataloading

Category D: Process & Training (5 points)

#CheckDescription
D1ConvergenceLoss curve shows monotonic decrease (smoothed)
D2GeneralizationValidation loss tracks training loss (no divergence)
D3PrecisionNo underflow/overflow in mixed-precision ops
D4DeterminismGlobal seed produces bit-exact reproduction
D5CheckpointingAtomic writes for model states; no corruption on crash

Category E: Output & Artifacts (5 points)

#CheckDescription
E1Format ValidityOutput .apr or .safetensors passes validator
E2ExplainabilitySaliency maps/attribution generated if required
E3VersioningArtifact tagged with git commit and config hash
E4PerformanceInference latency meets SLA (< 100ms etc.)
E5DocumentationRun logs and observations archived

QA Workflow

1. Pre-Training

# Validate configuration (Poka-yoke)
entrenar validate config.yaml

# Check data integrity
entrenar check-data config.yaml --verify-hashes

2. During Training

Monitor the terminal dashboard for:

  • Loss explosion (Andon alert)
  • GPU memory pressure
  • Learning rate schedule
  • Gradient norms

3. Post-Training

# Validate output artifacts
entrenar verify-output ./experiments/my-run/

# Generate QA report
entrenar qa-report config.yaml --output qa-report.md

Using the Checklist

For Each Scenario

  1. Run training with the YAML config
  2. Complete checklist - mark each of the 25 points
  3. Document exceptions - note any deviations
  4. Archive results - store logs and checklist

Example Checklist (YAML-001: MNIST CPU)

## QA Checklist: YAML-001 MNIST Baseline CPU

**Date**: 2025-11-30
**Operator**: @engineer
**Config**: examples/yaml/mnist_cpu.yaml

### Safety & Ethics
- [x] A1: Human oversight - operator present
- [x] A2: Stop mechanism - NaN detection enabled
- [x] A3: Data privacy - MNIST is public domain
- [x] A4: Bias check - balanced digit distribution
- [x] A5: Impact analysis - demo only, no production use

### Data & Inputs
- [x] B1: Source integrity - alimentar verified
- [x] B2: Normalization - 0-1 scaling applied
- [x] B3: Splitting - stratified 80/10/10
- [x] B4: Augmentation - none used
- [x] B5: Format - float32 on CPU

### Compute & Resources
- [x] C1: Resource cap - 2GB RAM used (<8GB available)
- [x] C2: Compute affinity - CPU only
- [x] C3: Thermal safety - N/A for CPU demo
- [x] C4: Energy budget - minimal
- [x] C5: Concurrency - single-threaded

### Process & Training
- [x] D1: Convergence - loss decreased monotonically
- [x] D2: Generalization - val_loss tracked train_loss
- [x] D3: Precision - float32, no mixed precision
- [x] D4: Determinism - seed=42 reproducible
- [x] D5: Checkpointing - epoch checkpoints saved

### Output & Artifacts
- [x] E1: Format validity - safetensors validated
- [x] E2: Explainability - N/A for demo
- [x] E3: Versioning - git commit tagged
- [x] E4: Performance - 50ms inference
- [x] E5: Documentation - logs archived

**Result**: PASS (25/25)

Integration with CI/CD

Add QA gates to your pipeline:

# .github/workflows/training-qa.yml
jobs:
  qa-validation:
    steps:
      - name: Validate configs
        run: |
          for f in examples/yaml/*.yaml; do
            entrenar validate "$f"
          done

      - name: Run QA suite
        run: cargo test --test yaml_mode_integration

      - name: Generate QA report
        run: entrenar qa-report --all --output qa-report.md

References

  1. Liker, J. K. (2004). The Toyota Way: 14 Management Principles. McGraw-Hill.
  2. Shingo, S. (1986). Zero Quality Control: Source Inspection and the Poka-yoke System.
  3. Ohno, T. (1988). Toyota Production System: Beyond Large-Scale Production.
  4. Poppendieck, M. & T. (2003). Lean Software Development.

Next Steps