Design System
A Design System is a shared, maintained set of rules, design tokens, components, patterns, and guides.
Another example
Product teams share the same button actions, error words, spacing, and accessibility rules.
Main parts
- 01Foundation or token
- 02Applied component
- 03Visible state and rule
Use it when
Use it when many screens or team members need to make the same design choices.
Do not use it when
A component page isn't a full system unless someone owns its rules and upkeep.
Name used in code
tokens + components + docs Before you ship
Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience.
Outcome: Use or define Design System to make the visual experience clear and easy to use. User context: Product teams share the same button actions, error words, spacing, and accessibility rules. Design concept to apply: Design System. Why it fits: Use it when many screens or team members need to make the same design choices. Do not use it when: A component page isn't a full system unless someone owns its rules and upkeep. Design requirements: Set the content order, shared design values, and reusable components. Define how the layout changes by screen size and state. Keep useful design choices separate from decoration. Inclusion and resilience: Check contrast, zoom, languages, themes, and reduced motion when needed. Do not use color or effects as the only way to show meaning. Acceptance criteria: The design stays clear on phones and desktops, at zoom, in every theme, and in all supported languages. Interactive states stay clear and consistent. Evidence and limits (evidence boundary): No single official standard controls the whole term. Its meaning may change across teams, platforms, or frameworks. Unknowns to confirm: Brand limits, amount of content, supported themes and languages, target devices, and design-system rules.
Check this request
Review the current use of Design System. Definition: A Design System is a shared, maintained set of rules, design tokens, components, patterns, and guides. Release checks: Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.