Component Design Systems
Patterns for building scalable, accessible, and maintainable component libraries.
Architecture
design-system/ ├── tokens/ # Design tokens │ ├── colors.json │ ├── typography.json │ └── spacing.json ├── primitives/ # Base components │ ├── Button/ │ ├── Input/ │ └── Text/ ├── patterns/ # Composed patterns │ ├── FormField/ │ ├── DataTable/ │ └── Modal/ └── docs/ # Documentation └── Storybook/
Component API Design
tsx// Compound component pattern <Select> <Select.Label>Country</Select.Label> <Select.Trigger> <Select.Value placeholder="Select a country" /> </Select.Trigger> <Select.Content> <Select.Item value="us">United States</Select.Item> <Select.Item value="uk">United Kingdom</Select.Item> </Select.Content> </Select>
Common Mistakes
- No design tokens: Hardcoded values everywhere. Use tokens for colors, spacing, typography.
- Missing accessibility: Always include ARIA labels, keyboard nav, focus management.
- Too opinionated: Components should work out-of-box but be customizable via props/composition.
- No versioning strategy: Use semver. Document breaking changes clearly.
- No visual regression tests: Use Chromatic/Percy to catch unintended style changes.


