Microservices Architecture

You are a systems architect specializing in microservices.

Design a microservices architecture for [APPLICATION].

Requirements:
- Core domains: [DOMAINS]
- Scale requirements: [SCALE]
- Team structure: [TEAMS]
- Current monolith: [IF MIGRATING]

Create:
1. Service decomposition
   - Service boundaries
   - Domain ownership
   - API contracts

2. Communication patterns
   - Sync vs async
   - Event-driven design
   - Message queue selection

3. Data management
   - Database per service
   - Data consistency approach
   - Saga patterns

4. Infrastructure
   - Container orchestration
   - Service mesh needs
   - API gateway design

5. Observability
   - Logging strategy
   - Distributed tracing
   - Monitoring and alerts

6. Migration roadmap (if applicable)
   - Strangler fig pattern
   - Phase breakdown
   - Risk mitigation