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@@ -450,45 +450,94 @@ Each documentation artifact has associated KPIs. Track these to ensure quality:
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# PRD: Feature Name
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## 1. Business Context & Success Metrics
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- Business Goal
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- User Stories (with acceptance criteria)
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- **Functional Requirements (FR)**: List each FR ID with its corresponding KPI target
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- **Non-Functional Requirements (NFR)**: Define quality/constraint requirements (e.g., "Support 10K TPS", "99.9% uptime", "TLS 1.3+")
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- **Success Metrics (KPIs)**: Define measurable targets that validate NFRs (e.g., "95th percentile latency <200ms", "MTTR <10min", "100% TLS 1.3")
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### Business Goal
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[Clear statement of the business problem being solved and why]
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### User Stories
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- **US-XXX**: [User story with clear action and value]
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- *Example: US-001 - As a wine retailer customer, I want to access the sommpanion chat so that I can get wine-related help quickly*
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### KPIs & Targets
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- **KPI-XXX**: [Measurable target with validation reference]
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- *Example: KPI-001 - 95% of chat messages receive responses within 3 seconds (validates FR-001)*
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## 2. Technical Boundaries
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- In Scope
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- Out of Scope
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- Dependencies (e.g., "Requires Stripe API v2023-08")
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### In Scope
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[List features and capabilities included in this release]
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### Out of Scope
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[List features explicitly excluded from this release]
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### Dependencies
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[List external services, APIs, or systems this feature depends on]
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### Deployment Constraints
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- **NFR-XXX**: [Deployment-specific requirement]
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- *Example: NFR-501 - System shall be deployed to MicroK8s cluster with relative URL support*
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## 3. Functional Requirements (FR)
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- **FR-XXX**: [Requirement ID] - [Clear, testable functional requirement]
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- **FR-XXX**: [Requirement ID] - [Clear, testable functional requirement]
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- *Example: FR-001 - System shall allow users to invite teammates via email address*
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### FR-XXX: [Requirement Title]
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[Detailed description of what the system shall do]
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- [Specific behavior 1]
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- [Specific behavior 2]
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- [Specific behavior 3]
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**Traceability**: US-XXX, US-XXX
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### FR-XXX: [Requirement Title]
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[Detailed description of what the system shall do]
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- [Specific behavior 1]
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**Traceability**: US-XXX
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## 4. Non-Functional Requirements (NFRs)
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### 4.1 Performance & Scalability
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- [e.g., Support 10K TPS, scale horizontally to 100 nodes]
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- **NFR-XXX**: [Performance requirement with measurable threshold]
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- *Example: NFR-101 - Support page shall load in <1 second on 3G networks*
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### 4.2 Availability & Reliability
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- [e.g., SLO: 99.9% monthly uptime, MTTR < 10min]
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- **NFR-XXX**: [Reliability requirement]
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- *Example: NFR-201 - Chat functionality shall have 99.9% monthly uptime*
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### 4.3 Privacy & Security
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- Data Classification: [e.g., PII, PHI]
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- Threat Model Outcomes: [e.g., "Mitigates replay attacks via nonce + timestamp"]
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- Auth/Z Expectations: [e.g., RBAC with 3 roles: viewer, editor, admin]
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- Encryption: [e.g., TLS 1.3+, AES-256 at rest]
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- Compliance: [e.g., GDPR Art. 32, SOC2 Type II]
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- **Data Classification**: [e.g., PII, PHI, commercial data]
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- **Encryption**: [e.g., TLS 1.3+, AES-256 at rest]
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- **Authentication**: [e.g., Session-based, OAuth2, API keys]
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- **Compliance**: [e.g., GDPR Art. 32, SOC2 Type II, HIPAA]
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### 4.4 Observability & Telemetry
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- Required Logs: [e.g., `user_id`, `request_id`, `status`, `latency_ms`]
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- Critical Metrics: [e.g., `auth_failures_total`, `api_latency_seconds{quantile=0.99}`]
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- Tracing: [e.g., Zipkin/B3 propagation, 10% sampling]
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- Alerting: [e.g., `auth_failure_rate > 5%/min` triggers PagerDuty]
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- Retention: [e.g., Logs: 30 days, Metrics: 1 year]
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- **Required Logs**: [e.g., `session_id`, `user_id`, `message_id`, `event_type`, `timestamp`, `latency_ms`]
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- **Critical Metrics**:
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- `metric_name_1`
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- `metric_name_2`
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- **Tracing**: [e.g., Zipkin/B3 propagation, 10% sampling]
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- **Alerting**: [e.g., `chat_delivery_rate < 95%` triggers PagerDuty]
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- **Retention**: [e.g., Logs: 30 days, Metrics: 1 year]
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## 5. Acceptance Conditions
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- [List verifiable conditions for sign-off, including validation gates]
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- [ ] **FR-XXX**: [Verifiable acceptance condition]
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- [ ] **FR-XXX**: [Verifiable acceptance condition]
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- [ ] **NFR-XXX**: [Verifiable acceptance condition]
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- *Example: [ ] FR-001: Sommpanion landing page renders with all required elements*
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## 6. Requirements Traceability Matrix
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| Requirement ID | Description | Implementation File | Test File |
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|----------------|-------------|---------------------|-----------|
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| FR-XXX | [Brief description] | `path/to/file.ext` | `tests/file.spec.js` |
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| NFR-XXX | [Brief description] | `path/to/file.ext` | `tests/file.spec.js` |
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**Notes**:
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- Functional Requirements (FR) define what the system shall do
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- Non-Functional Requirements (NFR) define system qualities (performance, availability, security, etc.)
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- KPIs are measurable targets that validate whether requirements were met post-deployment
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- Each requirement must include a clear requirement ID for traceability
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- All acceptance conditions must be verifiable through testing or manual inspection
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```
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### Solution Design Template
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