User Interface and User Experience (UI/UX) Design
UI/UX Design, UI, User Experience, User Experience Design
What it covers
UI/UX is not one skill but a field that runs from understanding people to shipping the pixels they touch. It spans research into what users need, information architecture that decides how a product is organised, interaction design that shapes the flow between screens, and visual design that makes each screen readable. The letters are shorthand, not a job description: these are separate disciplines with different methods and evidence.
Why it matters
Software that works but cannot be understood fails as completely as software that crashes, and it fails more quietly. A user who cannot find a setting does not file a bug report; they leave. These disciplines replace guesses about that behaviour with evidence: questions asked of real users, structures tested before they are built, interfaces measured after release. They also decide how much engineering effort goes to the right screen.
Included skills
- User Research (03-design-ux/05-user-research) — gathering evidence about what people do before deciding what to build.
- Information Architecture (03-design-ux/09-information-architecture) — organising content and navigation so it can be found.
- Interaction Design (03-design-ux/44-interaction-design) — shaping flow and feedback as someone moves through a task.
- Visual Design (03-design-ux/10-visual-design) — typography, colour and layout that make a screen legible and trustworthy.
- Usability Testing (03-design-ux/33-usability-testing) — watching real people attempt the task and learning where it breaks.
Where to start
Start with User Research: it grounds every later decision in evidence rather than taste. Move on to Information Architecture and Interaction Design to turn that understanding into structure and flow, then Visual Design to make it legible. Leave Usability Testing until you have something to test; it then loops back into the earlier skills.