User Experience (UX) is the overall experience a person has when interacting with a product, system, or service. It encompasses usability, accessibility, efficiency, and emotional response.
Usability: Can users complete tasks easily? Information Architecture: Is content well-organized? Interaction Design: Are interactions intuitive? Visual Design: Is it aesthetically pleasing? Content: Is copy clear and helpful? Accessibility: Can everyone use it?
UI (User Interface): What it looks like, buttons, colors UX (User Experience): How it works, feels, and helps users
Good UI with bad UX = Pretty but frustrating Good UX with bad UI = Functional but unappealing Best: Both good UI and UX
Task success rate: Can users complete goals? Time on task: How efficiently? Error rate: How many mistakes? Satisfaction: How do users feel? NPS: Would they recommend it?
Discovery:
Testing:
✅ Useful: Solves real problems ✅ Usable: Easy to use ✅ Findable: Can locate what they need ✅ Credible: Users trust it ✅ Desirable: Users want to use it ✅ Accessible: Everyone can use it ✅ Valuable: Delivers value to users and business
❌ Confusing navigation ❌ Hard-to-find information ❌ Slow performance ❌ Unclear error messages ❌ Too many steps to complete tasks ❌ Not mobile-friendly
For users: Less frustration, more success For business: Higher conversions, retention, satisfaction ROI: Every $1 in UX returns $100
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