More in Design Systems — page 7
Design token pipeline serving Web, iOS, and Android
This tests cross-platform design system architecture and governance. A strong answer uses W3C JSON tokens in option, decision, component layers, with Style Dictionary generating Web, iOS, and Android outputs. Red flag: using Figma or CSS as source of truth.
Implement a typographic scale using design tokens and accessible properties
Token-driven typography and accessibility. Start with base size (14-16px) and ratio token, compute sizes, then bundle font-size with line-height, letter-spacing, weight, and family in composite tokens. Red flag: ignoring line-height, spacing, or composites.
What is a design token versus a CSS or Sass variable?
Whether you understand abstraction layers in design systems and cross-platform interoperability. Define tokens as vendor-neutral design decisions that generate platform-specific code; contrast with CSS variables (runtime, web-only) and Sass (compile-time…
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How does a mature design system change cross-functional collaboration?
Tests whether you view maturity as a collaborative operating framework, not just components. Strong answers hit shared definitions of done, living documentation, code/design parity, and trust-based adoption. Red flag: calling it a docs or enforcement problem.
How do you handle a product team requesting a custom Button?
This tests governance discipline. A strong answer asks context questions to separate misuse from a real gap, uses a decision tree for actions and CTAs, and extends the system with a documented variant. A red flag is instantly greenlighting a custom fork.
What governance model would you propose for a centralized design system?
Tests balancing standardization with autonomy across legacy silos. A strong answer proposes a hybrid model with a core team and contribution rules, weighing consistency against migration cost.
What metrics measure design system success and adoption?
Tests if you connect design system health to delivery speed and consistency. Strong answers hit adoption rate, component usage, design-to-code parity, and accessibility compliance tied to team behavior.
What are design tokens and why standardize them?
Tests whether you treat tokens as API contracts between design and engineering. Strong answers define platform-agnostic decisions, cite W3C DTCG spec for cross-platform codegen, and note aliasing prevents drift.
How would you build a design system business case for leadership?
WHAT IT TESTS: Reframing UI inconsistency as a business cost. ANSWER OUTLINE: Audit inefficiencies with metrics, map the pitch to stakeholder priorities like ROI and velocity, and contrast build cost with projected savings.
What are the main benefits of consuming a design system?
WHAT IT TESTS: whether you see a design system as more than a UI kit and tie tokens to velocity. ANSWER OUTLINE: cite tokens for theming, isolated components, live docs, and designer collaboration. RED FLAG: calling it just a CSS framework and ignoring tokens.
Component library vs style guide vs design system
WHAT IT TESTS: Knowledge of hierarchy in design artifacts. ANSWER: A design system is holistic parent for scale; a style guide is a narrow visual/content child; a component library is a coded child of reusable UI elements. RED FLAG: Do not conflate them.
What is a design system and its primary engineering components?
Tests if you treat design systems as engineering infrastructure, not just UI kits. Strong answers cite reusable coded components, design tokens, documentation, and governance as the core. Red flag: calling it just a component library or style guide.
Map Components to Native Platform Equivalents
Map design system components to native OS equivalents instead of forcing identical custom widgets everywhere. Use this when cross-platform apps must respect platform conventions.
Material Design: Android's Paper Metaphor
Material Design models Android UI as stacked paper with light and elevation. It ships pre-built components like cards and FABs so your app feels native immediately.
Structural vs. Thematic Tokens: Job vs. Value
Structural tokens describe the role, like text-primary; thematic tokens describe the value, like blue-500. Split them so retheming does not require hunting hexes. The footgun is using only thematic tokens, which hardcodes intent and breaks dark mode.
Scoped Theming: Local Overrides Without Global Leaks
Scoped theming is sunglasses for a UI subtree: it swaps tokens for one section without touching the global page. Use it for a dark-mode dashboard or white-label widget inside a light app, but avoid deep nesting or you will fight invisible inheritance chains.
Token Aliasing: Theme by Role, Not Value
Token aliasing names a color by its job, not its hex, so you swap the underlying value per theme. One library supports light mode, dark mode, or multiple brands without code changes. The footgun is deep alias chains that hide which primitive value renders.
Design System API Review
A design system API review treats component props as a public contract before code ships. It catches inconsistent naming, prop bloat, and breaking changes that fragment the product. Teams skip it because "it is just UI," creating unmaintainable interfaces.
Automated Deprecation Warnings in Design Systems
Deprecation warnings are a design system's immune system: they flag outdated components in an editor before bad code ships. They matter most when dozens of teams consume the system. The footgun is warning fatigue; silenced errors hide real breaking changes.
Migration Guide: Operational Playbook for Design System Changes
A migration guide is an operational playbook, not just docs: it phases breaking design system changes across production code so teams don't freeze development. Skip the operational plan and you end up with a permanent dual-system mess.