UX

In simple terms

UX (user experience) is everything about how someone experiences a product: how easy it is to figure out, how it feels to use, how well it fits the job they came for. The interface — buttons, screens — is one part of UX; the rest is flow, copywriting, performance, error states, even brand.

More detail

UX work draws from several disciplines:

• User research — interviews, surveys, analytics, usability tests to understand who the users are and what they’re trying to do.
• Information architecture — how content is named, grouped, and navigated.
• Interaction design — the moment-to-moment dance of clicking, typing, scrolling.
• Visual design — type, colour, spacing, hierarchy.
• Content / UX writing — labels, errors, microcopy.
• Accessibility — making the product usable by people with diverse abilities.
• Measurement — usability metrics, task success rates, satisfaction scores.

Heuristics that get reused a lot (Nielsen, Norman):

• Match the system to the real world (use the user’s language).
• Show system status — never leave the user wondering.
• User control — easy undo, easy exit.
• Consistency — within product and with platform conventions.
• Help users recognise, diagnose, and recover from errors.
• Prevent errors in the first place where possible.

UX is most useful when treated as a continuous loop: ship something, observe how real people use it, fix the worst friction, repeat.

Why it matters

Software that’s technically capable but a pain to use loses to less powerful competitors that respect the user’s time. UX is what turns capability into adoption.

Real-world examples

• A “Forgot password” link saved more accounts than any marketing campaign.

• An e-commerce site that adds a guest checkout option often sees double-digit conversion improvements.

• The default settings of an app are, in practice, the only ones most users ever see — defaults are a UX decision.

• Adding a guest checkout option to e-commerce sites is a famous UX intervention that has been measured to increase conversion by 10-30% — usually more than any visual redesign.

Common misconceptions

• “UX = pretty UI.” UI is a subset; UX includes onboarding, error states, performance, and beyond-screen interactions (emails, notifications, support).
• “UX is opinion.” Good UX is grounded in observed user behaviour, not designer taste.

Learn next

The visible layer: user interface. The often-forgotten audience: accessibility.