Modernization & Migration

📄️ Strangler Fig Pattern

Incrementally replace legacy systems by growing new functionality alongside the old.

Manage large refactorings and migrations through feature flags and abstraction layers.

Execute database schema changes without downtime using multi-phase rollouts.

Wrap legacy systems with facades and anti-corruption layers to reduce their impact.

Safely migrate data between systems using dual writes, backfill, and change data capture.

Break apart monolithic systems along domain boundaries while maintaining consistency.