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Jul 4, 2020 · Backend Development

Understanding VO, DTO, DO, and PO: Concepts, Differences, and Practical Applications

This article explains the definitions, distinctions, and practical usage of View Object (VO), Data Transfer Object (DTO), Domain Object (DO), and Persistent Object (PO) in layered software architecture, illustrating their roles, conversion processes, and design considerations for clean separation of concerns.