Splitting the Monolith: Incremental Migration Strategies
Overview Chapter 3, Splitting the Monolith, focuses on practical approaches to decomposing monolithic systems incrementally rather than through disruptive big bang rewrites. It introduces migration patterns like the Strangler Fig and Branch by Abstraction while emphasizing the importance of balancing technical feasibility with organizational realities. Read Chapter 2 Summary: “Planning a Migration” Read Chapter 1 Summary: “Just Enough Microservices” Incremental migrations Newman argues that migrating incrementally allows teams to learn, adapt, and rollback changes if necessary. Acknowledging that many teams skip refactoring the monolith entirely, he notes that clean-room implementations—building new services from scratch—are often more practical, though riskier when undertaken at a large scale. ...