## Phase Overview

**Inception** (4-6 weeks):

- Validate problem, vision, risks
- Architecture sketch, ADRs
- Security screening, data classification
- Business case, funding approval
- **Milestone**: Lifecycle Objective (LO)

**Elaboration** (4-8 weeks):

- Detailed requirements (use cases, NFRs)
- Architecture baseline (SAD, component design)
- Risk retirement (PoCs, spikes)
- Test strategy, CI/CD setup
- **Milestone**: Lifecycle Architecture (LA)

**Construction** (8-16 weeks):

- Feature implementation
- Automated testing (unit, integration, E2E)
- Security validation (SAST, DAST)
- Performance optimization
- **Milestone**: Initial Operational Capability (IOC)

**Transition** (2-4 weeks):

- Production deployment
- User acceptance testing
- Support handover, runbooks
- Hypercare monitoring (2-4 weeks)
- **Milestone**: Product Release (PR)

**Production** (ongoing):

- Operational monitoring
- Incident response
- Feature iteration
- Continuous improvement