Skip to main content
Interface Atlas
Guide

Frontend Architecture

The deliberate design of boundaries between state, data, and presentation in a user interface.

Published

Contents

Definition

The deliberate design of boundaries between state, data, and presentation in a user interface.

Frontend architecture is not the name of the framework you chose; it is the system of boundaries you define. It is the set of structural decisions that organize UI code, control data flow, and dictate runtime behavior.

Why It Matters

Without an explicit architecture, codebases ossify into a “Big Ball of Mud.” UI components become tightly coupled to database structures, making it impossible to redesign a screen without breaking the backend logic. Good architecture protects the UI from the database, and the database from the UI.

Architecture vs. Tools

  • Tooling: “We use React, Tailwind, and Vite.”
  • Architecture: “We use a static shell with Islands for interactivity, and all domain logic is extracted into framework-agnostic TypeScript modules.”