Front-end and Back-end Separation Architecture

This template system describes the technical architecture of a software system built using a front-end/back-end separation model. It aims to help architects, development engineers, and technical decision-makers fully understand the system's layered structure, interaction mechanisms, and technology selection. Based on the core principle of "separation of concerns," the template divides the architecture into three main modules: the front-end layer, the back-end layer, and the interface layer. The front-end layer focuses on user interface interaction, state management, and routing control; the back-end layer focuses on business logic processing, data persistence, and security control; and the interface layer, based on protocols such as RESTful API, GraphQL, or gRPC, standardizes data communication and contract definitions between the front-end and back-end. The template also covers key design elements such as deployment architecture, cross-domain processing, authentication and authorization (e.g., JWT, OAuth2), API version management, and performance optimization. Through a structured framework, it ensures that the description of the front-end/back-end separation architecture is logically clear, with well-defined responsibilities and traceable protocols, providing a reusable reference for system design reviews, technology selection, and team collaboration.