Engineering Glossary

What is Strangler Fig Migration Pattern?

Zero-downtime strategy for replacing legacy monolithic software.

Definition

An architectural pattern where a new, modern application (Next.js/Postgres) is built around the edges of a legacy system. Workflows are incrementally rerouted to the new system until the old system can be safely strangled and decommissioned.

Key Benefits

Zero downtime
Incremental risk reduction
Parallel validation