UX Checklist for UI Components
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UX Checklist for UI Components

Brand Guidelines

This checklist is designed to help UX designers create components that deliver a consistent, accessible, and user-friendly experience across TxDOT’s digital design system. It focuses on high-level principles that support usability and compliance without adding unnecessary complexity. Use it as a quick reference during design and review to ensure every component meets core UX standards.

Important: This checklist is high-level and applies to all components in the digital design system. Specific accessibility requirements take precedence over those listed here. 

Purpose & Clarity

  • Does the component have a clear, single purpose?
  • Is the component name descriptive and consistent with the design system taxonomy?
  • Does the component avoid unnecessary complexity?

Accessibility (WCAG 2.1)

  • Color Contrast: Text and interactive elements meet WCAG AA contrast ratio (4.5:1 for text, 3:1 for large text and graphic elements).
  • Keyboard Navigation: Component is fully operable via keyboard (Tab, Enter, Space).
  • Focus States: Visible focus indicators for all interactive elements.
  • ARIA Roles & Labels: Correct semantic roles and accessible names applied.
  • Touch/Click Targets: Minimum 44px by 44px for interactive elements on mobile and 24px by 24px on desktop.

Interaction & Feedback

  • Does the component provide clear feedback for user actions (hover, active, disabled states)?
  • Are error states and success states clearly communicated?
  • Are animations or transitions subtle and not blocking interaction?

Consistency

  • Does the component follow TxDOT brand guidelines for typography, color, and spacing?
  • Are icons and imagery consistent with the design system?
  • Does it align with established interaction patterns?

Content

  • Is text concise, clear, and written in plain language?
  • Are labels and instructions contextually relevant?
  • Does the component avoid jargon or abbreviations without explanation?

Performance & Technical Feasibility

  • Is the component optimized for fast load times (minimal assets, no unnecessary scripts)?
  • Does it scale well for responsive layouts (mobile, tablet, desktop)?
  • Does it avoid heavy dependencies that could impact performance?

Testing & Validation

  • Has the component been tested for usability with real users or representative scenarios?
  • Does it pass automated accessibility checks (e.g., Stark)?
  • Is it documented in the design system with usage guidelines?