Phase A · Governance Validation Pilot

Governance-first medication safety, ready for clinical review.

A clean production trial matching the Overview and Phase A documents: deterministic medication checks, allergy conflict detection, explainable outcomes, controlled escalation, and immutable audit evidence.

Run prescription safety check View application PDF Review audit trail
10
Patients

Reference-linked allergy profile snapshots.

4
Active rules

Centrally governed medication safety constraints.

35
Audit events

Append-only traceability with immutable hashes.

9
High-risk cases

Escalated before unsafe execution.

PDF clinical decision flowchart

Rebuilt from “AI Healthcare Governance System Architecture — Phase A”: patient admission to immutable audit.

PDF-aligned · Interactive-ready
Clinical flow Conflict-free cases are approved; conflict cases are blocked, escalated, reviewed, and permanently audited.
Clinical decision flowchart Patient admission, doctor evaluation, prescription entry, AI governance validation, conflict decision, and separated approval or escalation branches. 🏥 Patient Admission profile, allergy history, clinical context 🩺 Doctor Evaluation symptoms, active medicines, contraindications 💊 Prescription Entry medicine, dose, and route submitted 🧠 AI Governance Validation allergy check · drug interaction · risk classification Conflict? clinical decision NO — CLEAR YES — CONFLICT ✓ Approve safe path continues ! Block & Escalate unsafe action stopped 📋 Audit Log evidence captured 👥 Supervisor Review authorized escalation 🏁 Finalized workflow complete ⚖ Override Decision approve/reject with reason 🔒 Immutable Audit permanent evidence
Clinical flow chart Patient admission flows through governance validation, then branches into no-conflict approval or conflict escalation and immutable audit. 🏥 Patient Admission profile + allergies 🩺 Doctor Evaluation clinical review 💊 Prescription Entry medicine + dosage 🧠 AI Governance Validation allergy · interaction · risk Conflict? decision NO YES ✓ Approve safe path ! Block & Escalate 📋 Audit Log evidence 👥 Supervisor Review 🏁 Finalized complete ⚖ Override decision 🔒 Immutable Audit

Work steps from the PDF

Translation of the source document into the live website workflow.

Prescription submission

Doctor submits patient information, allergy history, medication recommendation, and dosage.

Conflict detection

The governance engine detects drug-allergy or drug-interaction conflicts and blocks unsafe continuation.

Risk classification

Risk is classified using allergy severity, compatibility, reaction history, policy, and confidence score.

Constraint enforcement

High-risk prescriptions require supervisor review and mandatory clinical justification.

Explainability layer

The system shows triggered rule, severity, decision source, timestamp, and required reviewing authority.

Controlled override

Supervisor receives escalation, reviews justification, approves/rejects, and logs all participants.

Immutable audit trail

Doctor, supervisor, timestamp, risk evaluation, rule version, final outcome, and reasoning are preserved.

Regulator scenario

Years later, the platform can reconstruct the full timeline with verifiable integrity and accountability.

Phase A API system architecture

Reusable REST/JSON governance API for any hospital portal, EMR/EHR, mobile app, admin console, or audit system, backed by MySQL operational data and Laravel-managed cache/queue runtime.

Architecture
Consumers
Clinical SystemsHospital/EMR/EHR clients
Admin SystemsRules, users, settings
Audit SystemsRead-only evidence APIs
API Edge
REST JSON APIValidation, routing, contracts
Identity & RBACCurrent roles, token-ready
API Services
Prescription CheckDecision endpoint
OverrideApproval workflow
Rule MgmtVersioned API data
Audit QueryEvidence endpoint
Core
Domain CoreEntities, events, invariants
Decision EngineDeterministic, AI-ready
Storage
Operational DBMySQL/MariaDB
Audit StoreAppend-only, hashed
Cache & QueueLaravel-managed

Phase A capability map

Built to mirror the supplied PDF governance requirements.

Rule-based · AI-ready
Safety

Drug interaction checks

Evaluates prescribed medication against current medications using centrally controlled governance rules.

Allergy

Allergy conflict checks

Compares prescription input with patient allergy snapshots and escalates unsafe conflicts.

Explainability

Decision explanation layer

Shows triggered rule, risk level, clinical impact, and required action instead of black-box alerts.

Control

Override governance

High-risk decisions require authorized Supervisor/Admin override with mandatory reason and audit trail.

Recent prescription decisions

Last eight evaluations across all actors and risk levels.

View audit
IDPatientRiskStatusActor
#10 Live API Verify PatientPT-API-LIVE-VERIFY high escalation required External API DoctorDoctor View
#9 AI Status Highlight VerificationPT-AI-STATUS-1778410012 high escalation required Verification DoctorDoctor View
#8 AI Integration VerificationPT-AI-VERIFY-1778409993 none allowed Verification DoctorDoctor View
#7 Demo PatientPT-181901 high escalation required Dr. Trial UserDoctor View
#6 Demo PatientPT-181754 high escalation required Dr. Trial UserDoctor View
#5 Demo PatientPT-181754 high escalation required Dr. Trial UserDoctor View
#4 Demo PatientPT-172658 high escalation required Dr. Trial UserDoctor View
#3 Demo PatientPT-171633 high escalation required Dr. Trial UserDoctor View
#10 — Live API Verify Patient high
escalation required

External API Doctor · Doctor

View decision
#9 — AI Status Highlight Verification high
escalation required

Verification Doctor · Doctor

View decision
#8 — AI Integration Verification none
allowed

Verification Doctor · Doctor

View decision
#7 — Demo Patient high
escalation required

Dr. Trial User · Doctor

View decision
#6 — Demo Patient high
escalation required

Dr. Trial User · Doctor

View decision
#5 — Demo Patient high
escalation required

Dr. Trial User · Doctor

View decision
#4 — Demo Patient high
escalation required

Dr. Trial User · Doctor

View decision
#3 — Demo Patient high
escalation required

Dr. Trial User · Doctor

View decision

Governance guarantees

Phase A's non-negotiable promises to clinicians and auditors.

  • Deterministic rule engine remains the safety floor; guardrailed AI assist can escalate but not downgrade risk.
  • Every critical action writes an immutable hash-backed event.
  • Rule changes are admin-controlled, versioned, and audited.
  • OpenAI/Claude settings can enable model-assisted prescription review with XML governance context.
Severity legend Low Moderate High

Phase A validates governance architecture, explainability, controlled escalation and audit integrity. Decisions are deterministic and rule-based — not AI-driven. Every critical action is sealed in the immutable audit trail.