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UI/UX design for websites and applications

Interface design decides whether people can do what they came for: find a service and send an enquiry, place an order, or fill in a form at work forty times a day without getting annoyed. We design websites and applications starting from those tasks, and only then choose colours and type.

Updated · 4 min read · DealPro

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In short

In short

  1. 01

    UX design is about structure and flows — what the user does, in what order, with how much effort. UI design is how it looks.

  2. 02

    We start with the tasks users come with and the business result each task should produce.

  3. 03

    Wireframes and clickable prototypes are tested before visual design, when changes are still cheap.

  4. 04

    Everything is designed for the phone first where visitors are mostly on phones, and for the desktop first in working tools used at a desk.

  5. 05

    The designer's output is ready for development: states, error messages, empty screens and every language version.

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Scope

UX and UI: what each covers

UX (user experience) answers questions like: what does a visitor need to see before they trust you enough to leave a phone number? How many steps does checkout have, and which can be removed? What happens when the search returns nothing? Its artefacts are user flows, site maps and wireframes.

UI (user interface) is the visual layer: layout grid, typography, colour, buttons, icons and states. Good UI makes the structure obvious — it shows what is clickable, what is important and where the user is.

The two cannot be separated in practice, but the order matters: a beautiful screen on top of a confusing flow still loses users. See UX design for a longer explanation.

How the design stage works

Research

We talk to the people who know the users best — sales managers, support staff, the owner — and look at analytics if the product already exists: where users drop off, what they search for, which pages they never reach. For internal tools, we watch how the work is done today, including the spreadsheets and chats it lives in.

Flows and structure

We describe key scenarios as steps: "a customer chooses a service, picks a time, pays a deposit, gets a confirmation". For websites, this becomes a site map and a page plan; for applications, a map of screens and roles.

Wireframes and prototypes

Wireframes show layout and content without visual design. We link them into a clickable prototype and walk through the scenarios with you and, where possible, with a few real users. Most structural problems are found here.

Visual design

Once the structure is agreed, we design the visual system: typography, colours, components and their states. For websites with several languages, we check the longest version of every heading and button, because Azerbaijani and Russian texts often need more space than English.

Handover to development

The final design includes everything developers need: hover, focus, error and loading states; empty screens; mobile and desktop versions; and a component library so new pages look consistent later.

Design for real conditions

  • Phones and slow connections. A layout that depends on large images or animations loses users on mobile data. See mobile-first design.
  • Accessibility. Sufficient contrast, readable font sizes, forms that work with a keyboard and a screen reader. This also helps everyone else.
  • Forms. The fewer fields, the more enquiries — but only if the fields that remain are the ones sales actually needs.
  • Data-heavy screens. In internal tools, tables, filters and bulk actions matter more than illustrations.

What we need from you

  • Who your users are and what they come to do, in your own words.
  • Examples of sites or apps you like and dislike, with a sentence on why.
  • Brand materials, if they exist.
  • One decision-maker who approves each stage, so feedback does not arrive from five directions.

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FAQ

Frequently asked questions

Do we need UX research for a small website?

Not a formal study. A conversation with the people who talk to customers every day, plus a look at analytics, gives most of the insight a small site needs.

Can you design only, and our developers build it?

Yes. We hand over design files with components and states documented, and remain available for questions during development.

How many design options do you show?

We prefer one well-argued direction, refined with your feedback, over several random variants. Choosing between three options often produces a compromise that nobody fully likes.

Related reading

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Contact

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