# Week 1 Standards Pack (Q2 2026)

## Purpose
This standards pack is the publishable Week 1 governance package for Phase 1. It consolidates architecture governance expectations, API release controls, waiver rules, and SOAP-to-REST prioritization guidance.

## 1. Scope
Applies to all new integrations, modified interfaces, and modernization workstreams in Q2 2026 onward.

## 2. Governance Model
- Architecture Review Board meets weekly during Phase 1.
- All P0 and P1 interface changes require ARB review before build approval.
- Exception requests must be documented with risk owner, expiration date, and mitigation plan.
- Approved decisions are recorded in WEEK1_ARB_DECISION_LOG_Q2_2026.md.

## 3. Minimum API Release Standards
### Design
- Version all externally consumed APIs.
- Use consistent resource naming and error structures.
- Preserve idempotency for retry-prone write operations.

### Security
- Enforce token-based authentication and least-privilege access.
- Encrypt all traffic in transit.
- Mask sensitive data in logs and monitoring outputs.

### Reliability
- Define timeout, retry, and fallback strategy.
- Set target SLOs for latency and availability.
- Provide rollback path before production cutover.

### Observability
- Emit request, latency, throughput, and error metrics.
- Include correlation IDs across services.
- Link each critical interface to a runbook and alert route.

### Data and Compliance
- Map every payload to canonical data entities where relevant.
- Classify sensitive fields and apply policy controls.
- Define validation rules for inbound and outbound payloads.

### Testing
- Require unit, integration, and contract tests.
- Validate backward compatibility where consumers remain on legacy protocols.
- Document cutover test evidence before release approval.

## 4. SOAP-to-REST Modernization Scoring Model
Each candidate is scored on four dimensions:
- Business Criticality: 0-30
- Incident and Operational Risk: 0-30
- Volume and Dependency Weight: 0-20
- Technical Complexity Penalty: 0-20

### Prioritization Formula
Priority Score = Business Criticality + Incident Risk + Dependency Weight - Complexity Penalty

### Decision Rules
- Wave 1: Highest risk and highest value interfaces with manageable cutover patterns
- Wave 2: High-value domain flows with moderate dependency complexity
- Wave 3: Important but more complex or lower urgency interfaces

## 5. Waiver and Exception Policy
A waiver may be granted only when:
- There is a hard business deadline that cannot be shifted
- The interface is temporary and has a retirement date
- A dependency outside team control blocks full compliance

### Waiver Requirements
- Named requester and accountable executive
- Specific standard being waived
- Documented risk and compensating controls
- Expiration date not to exceed 90 days
- Review at next ARB session

### Automatic Rejection Conditions
- No rollback plan
- No risk owner
- No logging or observability path
- Unbounded exception duration

## 6. Week 1 Deliverables Covered by This Pack
- WEEK1_ARB_AGENDA_Q2_2026.md
- WEEK1_ARB_DECISION_LOG_Q2_2026.md
- WEEK1_API_STANDARDS_CHECKLIST_Q2_2026.md
- WEEK1_SOAP_INVENTORY_TEMPLATE_Q2_2026.csv
- WEEK1_KPI_BASELINE_Q2_2026.csv
- WEEK1_INCIDENT_BASELINE_DISCOVERY_WORKSHEET_Q2_2026.md

## 7. Approval Block
- Enterprise Architect: Approved
- Integration Lead: Approved
- Security Lead: Approved
- Data Architect: Approved
- Approval Date: 2026-04-15