Job ads keep asking for a 'UX/UI Designer'. That is a bit like asking for a 'mason/engineer'. Here is why UX and UI are different, and why that is good.
UX is not UI. UX (the work of a UXD) is the whole experience: research, personas, information architecture, psychology, testing. UI (the work of a UID) is the interface itself. They nest: UX contains UI, and UI contains web design. A true ‘UX/UI Designer’ who does both deeply exists but is rare (a ‘unicorn’). Neither is superior; they are different jobs that pair perfectly, and the best UX work is often invisible while great UI is very visible.
Key takeaways
- UX is not UI; 'UX/UI Designer' usually reflects trend-chasing job ads, not a real role.
- UX contains UI, and UI contains web design. They are nested, not equal.
- A UID uses UX concepts but does not usually do research, personas, IA or testing.
- Someone who genuinely does both deeply is rare, a 'UXnicorn'.
- Neither is superior; good UX work is often invisible, while good UI is very visible.
UX is not UI, but why?
UX contains UI, and UI does not contain UX.
Dorve
A UI designer can use user-experience concepts, but that is not the same as being a UX designer. A UID does not usually create personas or a theoretical framework, run prior research or user tests, or handle deep psychology, data flow and information architecture. Sometimes they make wireframes or mockups, but even those are not their core. If someone does all of that plus the interface, then yes, they are a rare UX/UI designer.
So is UI less than UX?
No. Some add ‘UX’ to their title fearing UI alone sounds lesser, but that is like a doctor adding ‘Engineer’: they can heal a leg, but not build a bridge. A UID asked to do a UXD’s job will struggle, and a UXD will not match a UID at building interfaces. UX is not UI and UI is not UX, and that is perfect: in practice they go together as a natural match. It is just more common to see UI-designer celebrities than UX-designer stars, because good UX work is, by nature, invisible.
No. UX is the whole experience (research, structure, psychology, testing); UI is the interface. UX contains UI, not the other way around.
Rarely. It usually reflects trendy job ads. Someone who genuinely does both deeply exists but is uncommon, jokingly called a ‘unicorn’.
A UI designer focuses on the interface. A UX designer also does research, personas, information architecture, psychology and user testing.
No. They are different specialties that pair perfectly. A UI expert and a UX expert each fail at the other’s core work.
Because when an experience works smoothly, users do not notice the effort behind it, unlike a striking interface, which is very visible.
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