Measuring User-Centric Design Success
Track and validate that your designs truly serve user needs
Your Progress
Section 5 of 5Metrics That Matter
You can't improve what you don't measure. User-centric design requires both quantitative metrics (numbers) and qualitative insights (user feedback) to understand if your design truly serves users.
The key is measuring outcomes (did users achieve their goals?) not just outputs (did we ship features?). Great metrics tell you if users are successful, satisfied, and loyal.
Calculate Key UX Metrics
Try adjusting values to see how different metrics are calculated:
System Usability Scale (SUS)
10-question survey that measures perceived ease of use
Rate each statement 1-5 (1=Strongly Disagree, 5=Strongly Agree):
1. I think I would like to use this product frequently
2. I found the product unnecessarily complex
3. I thought the product was easy to use
4. I would need support to use this product
5. The features were well integrated
SUS Score
Excellent
Analyze Usability Test Results
See how to extract insights from real usability testing sessions:
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Key Insights
Users found the email verification process clear
3 users confused by password requirements
Add real-time password strength indicator
What Users Said
"The form was straightforward, but I had to try 3 passwords before one worked."
— P3
"Loved the social sign-up options - saved me time!"
— P7
Balanced Metrics Framework
Quantitative Metrics
Numbers that show what's happening:
- • Task success rate
- • Time on task
- • Error rate
- • SUS & NPS scores
Qualitative Insights
Stories that show why it's happening:
- • User interviews
- • Usability test observations
- • Support tickets
- • User feedback
Continuous Improvement Cycle
Measure current state → Identify problems → Design solutions → Test with users → Iterate based on feedback → Measure again. User-centric design is never "done"—it's an ongoing process of learning and improvement.
Key Takeaways
- •Measure outcomes (user success) not outputs (features shipped)
- •Balance quantitative metrics (SUS, NPS, task success) with qualitative insights (interviews, observations)
- •Usability testing reveals both what users do and why they struggle
- •User-centric design is continuous: measure, learn, improve, repeat