feature-sliced-design

Scope-based decomposition organizes frontend code into slices that align with business value and technical layers. This architectural methodology enforces downward dependency rules and strict isolation between slices to solve large-scale application complexity.

Structure a large frontend application using a layered hierarchy with strict downward dependency rules. Organize code into isolated slices, enforce mandatory public API exports, and align modules with business value to ensure long-term maintainability.

You need a layered architecture when frontend scalability becomes critical and code complexity impacts maintainability. Scope-based decomposition aligns technical layers with business value, enforcing isolation and downward dependencies to manage large-scale application growth effectively.

Enforce strict isolation between code slices by mandating public API exports for each slice. Ensure slices at the same layer remain self-contained and do not depend on each other, adhering to the downward dependency rules of the layered hierarchy.

Feature-sliced design works for existing frontend codebases by incrementally organizing code into layers and slices following the provided guidelines. The methodology aligns existing code with business value and technical layers without requiring a complete rewrite.

Scope-based decomposition requires strict adherence to downward dependency rules and mandatory public API exports. The methodology introduces structural overhead and may complicate small projects where the overhead of slice isolation and layered hierarchy outweighs maintainability benefits.