Java Captain

Jul 6, 2022 · Backend Development

Guidelines for Developing Standard Java Web Applications: Layering, Responsibilities, and Data Types

This article explains how to design a well‑structured Java web application by defining clear three‑layer architecture (Controller, Service, DAO), outlining each layer's responsibilities, describing data type conventions such as PO, BO, VO, DTO, Model, and showing how these types map to the layers for maintainable, scalable development.