Heuristics are general principles for evaluating interface usability. Experts use heuristics to identify potential problems without user testing. The most widely used set is Jakob Nielsen's 10 Usability Heuristics.
What are UX Heuristics?
Heuristics provide a framework for evaluating interfaces systematically. Unlike detailed guidelines, heuristics are broad principles applicable across different contexts.
Heuristic evaluation process:
- Individual evaluators review the interface
- Each identifies violations of heuristics
- Findings are compiled and prioritized
- Team addresses most severe issues
Nielsen's 10 Usability Heuristics
1. Visibility of system status: Keep users informed about what is happening.
2. Match between system and real world: Use familiar language and concepts.
3. User control and freedom: Provide undo and exit options.
4. and standards: Follow platform conventions.
5. Error prevention: Design to prevent problems before they occur.
6. Recognition rather than recall: Make options visible rather than requiring memory.
7. Flexibility and efficiency: Support both novice and expert users.
8. Aesthetic and minimalist design: Remove unnecessary information.
9. Help users recognize and recover from errors: Use plain language for error messages.
10. Help and documentation: Provide searchable help when needed.
Applying Heuristics to E-commerce
Visibility: Show cart count, order status, inventory levels.
User control: Allow easy cart editing, address changes, order cancellation.
Error prevention: Validate forms before submission, confirm destructive actions.
Consistency: Use standard e-commerce patterns (cart icon, checkout flow).
Heuristic Evaluation Limitations
Heuristic evaluation finds usability issues but does not reveal:
- How severe problems are for actual users
- Whether users will actually encounter issues
- How issues impact business metrics
Combine heuristic evaluation with user testing and analytics for complete understanding.
