Overview
The Structural Overlay is the foundation of every S3 Spine diagnostic run. It maps the load-bearing architecture of the system under analysis, identifies latent faultlines — fracture planes that may not yet be visible as failures — and scores each via the Structural Criticality Scale (SCS). The registered Structural Frame becomes the coordinate anchor inherited by all five downstream overlays.
RTT Engines
| Engine | Role | Function | Version |
|---|---|---|---|
| STRUCTURAL_FAULTLINE_DETECTOR | Primary | Locates and scores latent fracture planes (SCS 0.0–1.0) | RTT/2 |
| REGIME_INTERLOCK_MAPPER | Secondary | Maps coupling geometry between co-active regimes | RTT/2 |
| TRIADIC_REGIME_SYNTHESIZER | Synthesizer | Validates structural frame before synthesis | RTT/3 |
| STABILITY_BASIN_CARTOGRAPHER | Validator | Validates fault scores against basin load data | RTT/2 |
Inputs & Outputs
Imports
- System input (raw — any domain)
- IPD-12 dimensional axes
- Triadic Detection signal readings
Exports
- Structural Frame (registered)
- Faultline Registry (SCS scores)
- Regime Interlock Geometry
- Boundary conditions → Drift Overlay
Metrics Produced
| Metric | Description | Range / Format | Consumed By |
|---|---|---|---|
| SCS | Structural Criticality Scale | 0.0–1.0 | All downstream overlays |
| Faultline count | Detected fracture planes | Integer | Drift Overlay |
| Interlock density | Regime coupling edges | Float | Domain Overlay |