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Model Layer

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Top Architecture Tech Stack
Top Architecture Tech Stack
May 21, 2025 · Backend Development

Understanding DTO, BO, PO, and VO in Backend Development

This article explains the concepts of Data Transfer Object (DTO), Business Object (BO), Persistent Object (PO), and Value Object (VO) in backend development, shows how they differ and interact across layers, and provides Java code examples and a global configuration to filter null fields during serialization.

BOBackend DevelopmentDTO
0 likes · 7 min read
Understanding DTO, BO, PO, and VO in Backend Development
JD Retail Technology
JD Retail Technology
Jan 5, 2018 · Frontend Development

Design and Architecture of the Hawaii SSR Framework for WeChat HandQ

The article introduces the Hawaii framework—a Node.js based server‑side rendering solution used by WeChat HandQ—detailing its background, core RDS request description files, component architecture, development workflow, comparison with React/Vue and GraphQL, and its deployment and monitoring strategies.

Model LayerNode.jsRDS
0 likes · 10 min read
Design and Architecture of the Hawaii SSR Framework for WeChat HandQ
Architecture Digest
Architecture Digest
Jul 3, 2017 · Mobile Development

Responsive Architecture in iOS: History, Essence, Benefits, and Integration Strategies

The article explores the evolution and core concepts of responsive architecture for iOS, explains immutability and its model layer, examines Flux as its foundational pattern, and provides practical guidance on integrating responsive design into existing mobile app architectures.

FluxMobile DevelopmentModel Layer
0 likes · 11 min read
Responsive Architecture in iOS: History, Essence, Benefits, and Integration Strategies