Product Design (UI/UX): Design the right product before you start coding.
Successful digital products start with the right questions. We research your users and business goals, and validate your idea with testable prototypes before you commit to development costs.
We treat UI/UX design not as a hand-off before development but as work that runs alongside the product from its first release. When the design system, component library and accessibility rules are set up early, engineering moves faster, screens stay consistent and later changes cost less.
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Product Design (UI/UX)In short
UI/UX design is the work of researching a digital product against user needs and business goals, designing its flows and interface, and testing it with a prototype before development starts. In our product design service, CoreTechs runs user interviews and produces the information architecture, interface design, design system and a clickable prototype, then completes the work with a handoff package your developers can use directly. The aim is to remove the cost of building the wrong feature before any code is written.
Scope
Scope
- Discovery research
- User interviews
- Information architecture
- User flows
- Interface design
- Design system
- Clickable prototype
- Usability testing
Deliverables
- Figma design files
- Design system library
- Prototype
- Developer handoff package
Who is it for?
- Start-ups and business units that want to validate a new product idea with real users before committing a development budget.
- Companies whose app or admin panel is seen as complicated, with support tickets and training needs that trace back to usability.
- Organisations with their own development team but no product design or user research capability.
- Teams that want a design system to keep several products or screens consistent in look and behaviour.
- Product owners who need a realistic prototype that runs on a phone for an investor pitch or internal approval.
How we work
Free introductory call
In 30 minutes we hear about the product, its target users and the assumptions you want to validate, and share the scope, an indicative timeline and a budget range.
Discovery research
We clarify business goals with stakeholders and uncover needs and pain points through user interviews and a review of the current product or competitors.
Information architecture and user flows
We design how screens and content are organised and the steps users take to reach their goals, using flow diagrams, and turn the scope into a screen inventory.
Interface design and prototype
We start with low-fidelity wireframes, move to an interface that fits your brand and turn it into a clickable prototype you can try on a phone or in the browser.
Usability testing
We test the prototype with target users through realistic tasks, report where they get stuck and refine the design based on the findings.
Design system and developer handoff
We collect colour, typography, spacing and components in a design system library and prepare a handoff package with screen states and interaction notes.
How long does it take?
How long product design takes depends on the number of screens, the depth of research (how many users we interview and how many test rounds we run), whether a design system is needed and how quickly feedback comes back. So we do not give a duration before the scope is clear. You get an indicative timeline in the introductory call and a phased schedule after discovery. Discovery usually starts within a week; we run design work in two-week cycles and share progress at the end of each one.
Phases
- Introductory call30 minutes, free. Product, users, assumptions and budget range are discussed.
- Discovery researchStakeholder and user interviews, current product and competitor review.
- Flows and information architectureUser flows, screen inventory and content structure.
- Interface and prototypeInterface design and a clickable prototype; the number of feedback rounds affects the schedule.
- Testing and handoffUsability testing, refinements, design system and the developer handoff package.
What drives the cost?
The cost of UI/UX design depends on the research and testing scope as much as on the number of screens. We share a budget range in the introductory call and a fixed quote after discovery. If you only want to start with a prototype, our Prototype Package covers that, and its fee is deducted from the total if the project continues.
| Factor | Effect on cost |
|---|---|
| Screens and flows | Each unique screen and user flow adds design and prototyping effort; repeated templates add much less. |
| Research scope | The number of users to interview, distinct user groups and stakeholders sets the research effort. |
| Usability test rounds | Each round means recruiting participants, running sessions, reporting and refining the design. |
| Number of platforms | Designs that need separate layouts and behaviour for web, iOS and Android widen the scope. |
| Design system needs | Setting up a component library and design tokens for a product that will grow takes more effort than a one-off set of screens. |
| Prototype fidelity | A prototype that shows only the main flow and a realistic one covering every state and transition differ noticeably in effort. |
Technology options
Design and prototyping
- Figma
- Clickable prototype
- Interaction and motion notes
Design system
- Component library
- Design tokens
- Accessibility (WCAG) checks
Research and testing
- User interviews
- Task-based usability testing
- Analytics review
Developer handoff
- Figma Dev Mode
- React component mapping
- Screen state documentation
Example solution scenario
A customer self-service portal validated before development
Representative scenario, not a real client project.
- Profile
- A mid-sized energy monitoring company providing subscription services to business customers.
- Need
- Customers sent invoice, consumption report and service requests by email and phone. The company had decided to build a self-service portal, but it was unclear which features would actually be used and how the screens should work.
- Approach
- Interviews with the support team and customers of different sizes identified the most frequent requests and the reports decision makers rely on.
- Information architecture and user flows were shaped around these findings, and the first release was narrowed to a few core flows.
- The interface was turned into a clickable prototype and put through task-based usability testing with customer representatives.
- The design, refined with the test findings, was handed to the development team with a design system library and a developer handoff package.
- Technologies
- Figma
- Clickable prototype
- Design system
- Usability testing
- Outcome
- The company starts development with a scope validated by users. Features that would see little use are dropped before they are built, and the development team works from a ready handoff package instead of debating screen and component decisions.
Frequently asked questions
What is the difference between UI/UX design and product design?
UI (user interface) is how screens look; UX (user experience) is how easily users reach their goals. Product design is the wider frame that covers both together with business goals and user research, and our service covers that whole picture.
What does the cost of UI/UX design depend on?
The number of screens and flows, research scope, test rounds, number of platforms and design system needs. We share a budget range in the introductory call and a fixed quote after discovery.
How long does the UI/UX design process take?
It depends on the number of screens, the depth of research and the number of test rounds. After discovery we provide a phased schedule, run the work in two-week cycles and share progress at the end of each one. If you want to start quickly, the narrower Prototype Package is also an option.
Can we buy design only and build with our own team?
Yes. All of our services can be bought on their own. With the Figma files, the design system library and the developer handoff package, your team can implement the design directly.
What is a prototype for? Is it a real app?
A prototype is a design model that is not coded but can be clicked through like a real app. It is used for user testing, investor pitches and internal approval, and it catches wrong decisions before they cost development time.
Can you improve the design of our existing product?
Yes. We review the current product for usability, test it with users and report issues in order of severity. Improvements can be designed in one go or in pieces that fit your development cycles.
Who owns the design files and rights?
Once the project fee is paid in full, the Figma files, the design system and all intellectual property rights are transferred to you.
Does the design take accessibility and performance into account?
Yes. We apply accessibility (WCAG) criteria such as colour contrast, text size, touch targets and keyboard use at the design stage. By avoiding heavy imagery and unnecessary animation, we also help the finished product load fast.
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