Architecture Digest

Oct 28, 2022 · Backend Development

Application Layering: Principles, Alibaba Specification, and Domain Model Conversion

The article discusses the importance of clear application layering, outlines Alibaba’s multi‑layer architecture, proposes an optimized layering model, explains domain object types (DO, DTO, BO, AO, VO, Query) and offers practical guidelines to improve code maintainability and reuse in backend development.