Designing pattern library documentation

Pattern libraries go beyond simple component catalogs by documenting not just what exists, but how interface elements work together. Without proper documentation, even the best-designed patterns can be misused or fall out of sync with the system.

A thorough pattern library documentation captures essential interaction dynamics:

• Pattern relationships: Mapping component combinations, layout principles, and common interface compositions
• Interaction rules: Documenting behavior logic, state changes, transition effects, and event handling
• Context guidelines: Recording where patterns should and shouldn't be used, along with edge cases
• Responsive behavior: Tracking how patterns adapt across different screen sizes, devices, and orientations
• Nested patterns: Describing hierarchies between patterns, from basic elements to complex compositions