182 lines
4.5 KiB
Markdown
182 lines
4.5 KiB
Markdown
# Specification: [FEATURE_NAME]
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**Version:** [X.Y.Z]
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**Created:** [YYYY-MM-DD]
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**Last Updated:** [YYYY-MM-DD]
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**Status:** [Draft | Review | Approved | Implemented]
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**Owner:** [OWNER_NAME]
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## Purpose
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Clear statement of what this specification defines and its business/technical value.
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## Requirements
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### Functional Requirements
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#### FR1: [Requirement Name]
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**Priority:** [Critical | High | Medium | Low]
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**Description:** Detailed description of the requirement.
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**Acceptance Criteria:**
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- [ ] Criterion 1 (testable condition)
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- [ ] Criterion 2 (testable condition)
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- [ ] Criterion 3 (testable condition)
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**Constitutional Alignment:**
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- Testing: [How this will be tested per Principle 2]
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- UX Impact: [User-facing implications per Principle 3]
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- Performance: [Performance considerations per Principle 4]
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#### FR2: [Requirement Name]
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[Repeat structure above]
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### Non-Functional Requirements
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#### NFR1: Performance
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Per Constitutional Principle 4:
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- Response time: [target, e.g., <200ms for p95]
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- Throughput: [target, e.g., >1000 req/s]
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- Resource limits: [memory/CPU bounds]
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- Scalability: [expected load ranges]
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#### NFR2: Quality
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Per Constitutional Principle 1:
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- Code coverage: ≥80% (Principle 2 requirement)
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- Linting: Zero errors/warnings
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- Type safety: Full type hints on public APIs
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- Documentation: All public APIs documented
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#### NFR3: User Experience
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Per Constitutional Principle 3:
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- Accessibility: WCAG 2.1 AA compliance
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- Error handling: User-friendly messages
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- Consistency: Follows existing design patterns
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- Response feedback: <200ms or progress indicators
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#### NFR4: Maintainability
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Per Constitutional Principle 1:
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- Complexity: Cyclomatic complexity <10 per function
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- Dependencies: Explicit versioning, security audit
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- Modularity: Clear separation of concerns
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## Design
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### Architecture Overview
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[Diagram or description of system components and their interactions]
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### Data Models
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```python
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# Example data structures with type hints
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class ExampleModel:
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"""Clear docstring explaining purpose."""
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field1: str
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field2: int
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field3: Optional[List[str]]
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```
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### API/Interface Specifications
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#### Endpoint/Method: [Name]
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```python
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def example_function(param1: str, param2: int) -> ResultType:
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"""
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Clear description of what this does.
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Args:
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param1: Description of parameter
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param2: Description of parameter
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Returns:
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Description of return value
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Raises:
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ValueError: When validation fails
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"""
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pass
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```
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**Error Handling:**
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- Error case 1: Response/behavior
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- Error case 2: Response/behavior
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### Testing Strategy
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#### Unit Tests
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- Component A: [Test scenarios]
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- Component B: [Test scenarios]
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- Edge cases: [List critical edge cases]
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#### Integration Tests
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- Integration point 1: [Test scenario]
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- Integration point 2: [Test scenario]
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#### Performance Tests
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- Benchmark 1: [Target metric]
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- Load test: [Expected traffic pattern]
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## Implementation Considerations
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### Performance Analysis
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- Algorithmic complexity: [Big-O analysis]
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- Database queries: [Query plans, indexes needed]
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- Caching strategy: [What, when, invalidation]
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- Bottleneck prevention: [Known risks and mitigations]
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### Security Considerations
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- Authentication/Authorization requirements
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- Input validation requirements
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- Data protection measures
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### Migration Path
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If this changes existing functionality:
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- Backward compatibility strategy
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- User migration steps
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- Rollback plan
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## Dependencies
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### Internal Dependencies
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- Module/Service A: [Why needed]
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- Module/Service B: [Why needed]
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### External Dependencies
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```python
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# New dependencies to add (with justification)
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package-name==X.Y.Z # Why: specific reason for this dependency
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```
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## Rollout Plan
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1. **Development:** [Timeline and milestones]
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2. **Testing:** [QA approach and environments]
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3. **Staging:** [Validation steps]
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4. **Production:** [Deployment strategy - canary/blue-green/etc]
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5. **Monitoring:** [Key metrics to watch]
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## Success Metrics
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Post-deployment validation:
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- [ ] All acceptance criteria met
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- [ ] Performance benchmarks achieved
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- [ ] Zero critical bugs in first week
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- [ ] User feedback collected and positive
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- [ ] Test coverage ≥80% maintained
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## Open Issues
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- [ ] Issue 1 requiring resolution
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- [ ] Issue 2 needing decision
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## Appendix
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### References
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- Related specifications
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- External documentation
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- Research materials
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### Change Log
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| Version | Date | Author | Changes |
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|---------|------|--------|---------|
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| 1.0.0 | YYYY-MM-DD | Name | Initial specification |
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