status-app/docs/FURPS/ui-modularization.md

UI Modular Architecture (#17872)

Functionality

• Establish a clean separation between UI and backend through a layered architecture (Services → Modules → Stores → Adaptors → UI Components).
• Enable domain-specific modularization to support unique functional requirements while maintaining a unified interface.
• Implement a standardized communication layer to pass data and trigger backend methods.

Usability

• Improve developer usability by exposing clean, testable, and reusable components.
• Enable consistent data flow and structure for all UI domains, improving readability and onboarding.
• Document architectural patterns and usage conventions to reduce ambiguity during development.

Reliability

• Reduce tight coupling between business logic and UI to minimize bugs from implementation side effects.
• Ensure predictable data flow with read-only modules and strictly typed store usage.
• Safeguard against improper store usage with guidelines on instantiation and component scope.

Performance

• Avoid unnecessary data duplication and propagation through read-only modules and centralized ground truth state.
• Minimize transformation overhead by using adaptors only when necessary for UI display logic.
• Ensure UI responsiveness by decoupling business logic processing from rendering logic.

Supportability

• Use strictly typed interfaces (no var) to catch issues at compile time and improve tooling support.
• Design components and stores for unit testing and Storybook stubbing.
• Enable cross-domain collaboration with shared structure, architecture diagram, and clear development guidelines.
• Facilitate future scaling by allowing domains to evolve independently within the modular structure.