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UI/UX

UX Design Process: A Practical Step-by-Step Guide

A practical UX design process: research, information architecture, wireframes, prototypes, usability testing and refinement, with methods and deliverables at each step.

Quick answer

A practical UX design process has six steps: research users and context; structure information and flows (information architecture); sketch layouts as wireframes; build prototypes of key interactions; test them with representative users; and refine based on what you learn, repeating until key tasks succeed. It focuses on how the product works for users, before detailed visual design. Scale each step to the project, but don't skip research or testing entirely.

Step 1: Research

Start with what you already have: analytics, support tickets, reviews and sales conversations. Add interviews or observation to understand goals and frustrations. Summarize findings into user groups, key tasks and pain points. See user research methods.

Research, IA, wireframe, prototype, test, refine, then repeat until tasks succeed.

Step 2: Information Architecture

Decide how content and features are grouped, labeled and connected. Card sorting reveals how users group content; tree testing checks whether they can find things in a proposed structure. Outputs include a sitemap and user flows for key tasks. See information architecture.

Step 3: Wireframes

Wireframes lay out content and controls without visual styling, so discussions focus on hierarchy and function. Start low-fidelity to explore options quickly, and increase detail as decisions settle.

Step 4: Prototypes

Link wireframes or designs into clickable flows that simulate the real experience. Prototype the riskiest parts, such as a new checkout or onboarding flow, rather than every screen. See wireframing vs prototyping.

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Step 5: Usability Testing

Ask representative users to complete realistic tasks with the prototype while thinking aloud, and watch where they hesitate or fail. According to Nielsen Norman Group, small tests of around five users per round, repeated, uncover most usability problems more efficiently than one large study. See usability testing.

Step 6: Refine

Prioritize issues by severity and frequency, fix them, and test again if changes are significant. Then move into detailed UI design and development, with the validated flows as the foundation.

Deliverables by Step

StepMethodsDeliverables
ResearchInterviews, analytics review, surveysFindings, user groups, pain points
IACard sorting, tree testingSitemap, user flows
WireframeSketching, low-fidelity layoutsWireframes
PrototypeClickable flowsPrototype
TestModerated or unmoderated usability testsFindings, severity ratings
RefineDesign iterationUpdated designs, backlog

UX in Agile Teams

In agile teams, UX usually runs one or two sprints ahead: researching and prototyping upcoming features while developers build validated ones. Designers stay available during development to answer questions and review builds.

Connecting UX to Conversion

On websites and stores, UX problems often show up as conversion problems. Analytics and experiments tell you where; UX research tells you why. See why a website isn't converting and ecommerce website design.

Common Mistakes

  • Starting in high fidelity, making feedback about visuals instead of flows
  • Testing with colleagues rather than real users
  • Designing only the happy path
  • Leaving IA decisions until after visual design
  • Running one big test instead of several small ones

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Conclusion

Research, structure, wireframe, prototype, test and refine: each step reduces uncertainty cheaply before it becomes expensive. Keep tests small and frequent, design beyond the happy path, and connect UX decisions to measurable outcomes. For the broader picture, see the UI/UX design guide.

FAQ

Common questions

Research, information architecture, wireframing, prototyping, usability testing and refinement, repeated as needed. Some teams also include a define step between research and structure.

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