EPIC-18: Component Library & Design System
| Field | Value |
|---|---|
| Total Story Points | 35 SP |
| Stories | 4 |
| Sprints | Sprint 78-80 |
| Priority | P0 - Critical |
| Dependencies | EPIC-14 (Theming) |
Overview
A unified design system ensures visual consistency, accelerates development, and improves maintainability. This EPIC delivers a comprehensive component library with 40+ reusable components.
Key Features
- Design Tokens: Colors, typography, spacing, shadows
- Core Components: Buttons, inputs, cards, modals
- Complex Components: DataTable, Form, Charts
- Documentation: Storybook with interactive examples
- Accessibility: WCAG 2.1 AA compliance by default
Stories Summary
| Story | Title | SP | Key Features |
|---|---|---|---|
| 18.1 | Design Tokens | 8 | Colors, typography, spacing, dark mode |
| 18.2 | Core Components | 13 | 30+ UI components |
| 18.3 | Complex Components | 8 | DataTable, Form, Charts |
| 18.4 | Storybook | 6 | Documentation, examples |
Design System Layers
Layer 4: Page Patterns (List, Detail, Form)
↑
Layer 3: Complex Components (DataTable, Form)
↑
Layer 2: Core Components (Button, Input, Card)
↑
Layer 1: Design Tokens (colors, spacing, typography)
Success Metrics
| Metric | Target |
|---|---|
| Component count | 40+ |
| Storybook coverage | 100% |
| Accessibility | WCAG 2.1 AA |
| Bundle size | <100KB gzipped |