YiSu Grain

Jul 24, 2026 · Backend Development

Microservices Revisited: Defining DDD Boundaries, Data Autonomy, Service Mesh and Observability

The article revisits microservice design by explaining how Domain‑Driven Design determines business boundaries, why each service must own its data, how Service Mesh and unified governance handle communication, and how logs, metrics and traces provide observability for distributed systems.