Usability & UX Testing

Overview

Usability testing evaluates how intuitive, efficient, and error-tolerant an application is for real human users. It identifies friction points, ambiguous affordances, and confusing error handling.

Nielsen Norman 10 Usability Heuristics Checklist

1. Visibility of System Status:
   • Are loading spinners, progress bars, and operation states clearly communicated?
   • Do long operations provide cancel options and ETA?
2. Match Between System and Real World:
   • Are labels, terms, and icons familiar to the target user audience (no developer jargon/stack traces)?
3. User Control and Freedom:
   • Is there a clear undo/cancel mechanism for destructive actions (e.g. deletion modal, confirmation dialog)?
   • Can users back out of a multi-step modal without losing uncommitted input unexpectedly?
4. Consistency and Standards:
   • Are button styles, icon meanings, and terminology consistent across all screens?
5. Error Prevention:
   • Are destructive buttons visually distinct (e.g. red, separated from confirm)?
   • Are sensible constraints applied to input fields before form submission?
6. Recognition Rather Than Recall:
   • Are instructions and contextual help visible when needed without requiring memorization?
7. Flexibility and Efficiency of Use:
   • Are keyboard shortcuts, tab navigation, and search auto-completes supported?
8. Aesthetic and Minimalist Design:
   • Is visual hierarchy clear? Is irrelevant or rarely needed information minimized?
9. Help Users Recognize, Diagnose, and Recover from Errors:
   • Are error messages written in plain language indicating the exact cause and clear next steps?
   • Are specific input fields with errors highlighted inline with clear guidance?
10. Help and Documentation:
    • Is contextual help easy to find, searchable, and focused on concrete user tasks?