Sentinel 20
Evidence-governed decision assurance for complex projects, systems and programmes.
Structure evidence, expose critical gaps, challenge assumptions, test decision robustness, explore scenarios, manage corrective actions and maintain an auditable progression record from one integrated workspace.
Methodology & Assurance
Product versions, assurance status and decision-use boundaries
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Sentinel 20 is commercial decision-assurance software. Its outputs structure readiness, evidence, uncertainty, contradictions, critical conditions, scenarios and bounded progression. Sentinel outputs do not by themselves constitute certification, regulatory approval, professional sign-off, engineering authority, clinical authority, legal advice, financial advice or a probability of success.
Commercial product status is separate from methodology validation status. External scientific validation, certification, accreditation or independent benchmarking are only claimed where corresponding documented evidence exists.
Decision Assurance Workspace
Readiness, evidence and progression intelligence.
Review current readiness, evidence sufficiency, critical controls, decision robustness and progression from one integrated workspace.
Assessment Framework
Readiness · R0–R5
- U
- Unassessable.
- R0
- Demonstrably absent.
- R1
- Recognised.
- R2
- Defined.
- R3
- Implemented.
- R4
- Verified.
- R5
- Demonstrated & Controlled.
- N/A
- Outside justified scope.
Evidence · Q0–Q5
- QU
- Unassessable.
- Q0
- Unsupported.
- Q1
- Indicative.
- Q2
- Documented.
- Q3
- Corroborated.
- Q4
- Controlled & Traceable.
- Q5
- High Assurance.
Evidence Constraint
Declared readiness is not automatically accepted. Linked evidence limits the level that can be defensibly supported.
Current evidence-readiness ceilings are operational settings subject to future calibration.
Non-Compensation
Material contradictory evidence or unresolved critical conditions cannot be erased by high average scores elsewhere.
Step 1 · Define
Project & Decision Boundary
Define the project, operating context, consequence tier and one bounded decision question.
Reviewer Governance
Independent-review status requires recorded competence, independence and conflict-of-interest information.
Sentinel does not automatically save assessment data to localStorage or sessionStorage. Export the Decision Record when deliberate retention is required.
Step 2 · Evidence
Evidence Intelligence
Register the evidence supporting, contradicting or qualifying the claims used in this assessment.
| ID | Title | Type | Source | Owner | Date | Version | Declared Q | Direction | Directness | Independence | Method | Applicability | Limitations | Uncertainty | Defeater | Severity |
|---|
Principle-level evidence support cannot exceed the admissible support of the linked evidence set. Contradictory evidence remains visible and may block critical progression.
Step 4 · Control
Critical Controls
Critical conditions use non-compensatory logic. High overall readiness cannot cancel unresolved material evidence, authority or boundary failures.
| Principle | Criticality | Supported R | Supported Q | Defeater | Control State | Reason |
|---|
Step 5 · Stress-Test
Decision Robustness
Test whether the current progression position remains stable when the assessment is exposed to declared synthetic stresses.
Decision-State Distribution
Step 6 · Explore
Scenario Lab
Explore hypothetical interventions without modifying the official assessment.
Build a Scenario
Official Assessment → Hypothetical Scenario
OFFICIAL ASSESSMENT
Current
SIMULATED · NOT ACTUAL EVIDENCE
Hypothetical
Decision Effect Path
This displays Sentinel decision logic. It is not a physical causal model.
Real-World Requirement
Scenario Experiment Log
| ID | Scenario | Principle | Intervention | Official Position | Scenario Position | Changed | Fingerprint |
|---|---|---|---|---|---|---|---|
| No scenario experiments recorded. | |||||||
Model Governance
Simulation Model Registry
Register physical, analytical, statistical, logical or data-driven models before relying on them for advanced simulation.
| ID | Name | Type | Version | Stage | Applicable Range | Limitations |
|---|
Step 7 · Act
Action & Closure Management
Convert gaps into accountable actions. Closing an action does not automatically increase readiness; closure evidence must support reassessment.
| ID | Principle | Action | Owner | Status | Due | Closure Evidence |
|---|
Step 8 · Reassess
Assessment History
Maintain append-only baseline and reassessment snapshots in the exported Decision Record.
| ID | Type | Timestamp | Position | NRPI | Evidence | Fingerprint |
|---|
Step 9 · Report
Sentinel 20 Assurance Report
Summarise evidence-supported readiness, critical controls, evidence sufficiency, decision robustness and progression.
Assessment incomplete.
Assessment incomplete.
Assessment incomplete.
No defensible progression conclusion is available.
Stress test not run.
Evidence register not assessed.
IYABOKO SENTINEL
Evidence before confidence.
Define → Evidence → Challenge → Assess → Stress-Test → Explore → Act → Reassess → Report
IYABOKO Sentinel 20 · Commercial Edition · Product 3.3 · Methodology 1.1 · EDC-R Core 1.0 · Robustness Engine 1.2 · Scenario Engine LSE 0.1