Enforcement Model
PreFlight — Deterministic Upstream Data Ingestion Gate
Execution Architecture
PreFlight executes a fixed-order deterministic enforcement sequence.
- Bounded structural evaluation path
- No adaptive branching
- No probabilistic evaluation
- No runtime learning
Execution behavior is invariant across identical inputs.
Structural Evidence Model
Verdicts derive exclusively from mechanically observable ingestion properties:
- Schema structural integrity
- Row traversal viability
- Numeric type stability
- Representation consistency
- Null density behavior
- Record continuity
- Encoding determinism
Only structural evidence contributes to verdict formation. No semantic inference is performed.
Verdict Reduction Model
Independent structural outcomes reduce mechanically to one of four verdicts:
- PASS
- WARN
- BLOCK
- ANALYSIS_INCOMPLETE
- No weighting
- No heuristics
- No interpretive aggregation
- No probabilistic logic
Verdict reflects structural determinism only.
Enforcement States
BLOCK — Deterministic ingestion violation established.
WARN — Structural exposure detected without provable corruption.
ANALYSIS_INCOMPLETE — Structural evidence insufficient to establish ingestion safety.
PreFlight issues verdicts only. Ingestion decisions remain external.
Determinism Constraint
Identical inputs yield identical outcomes across:
- Test execution
- Structural evaluation
- Verdict reduction
- Evidence reporting
No stochastic or adaptive behavior exists within enforcement.
Boundary Rule
Enforcement operates without downstream awareness.
- No business meaning interpretation
- No model context evaluation
- No workflow execution
- No transformation or repair
Evaluation is limited strictly to ingestion safety.
Scope Limits
The enforcement model governs ingestion safety only.
It does not:
- Modify datasets
- Rewrite schema
- Infer intent
- Adjust enforcement automatically
- Perform semantic validation
Function is enforcement — not transformation, orchestration, or governance.
Operational Posture
- Upstream
- Deterministic
- Mechanical
- Auditable
- Non-interactive