Ever opened a website or app and felt instantly lost, clicking around with no idea where to go next? Now imagine a website that feels like it was made for you, guiding you naturally from one step to the next. The difference comes down to user experience (UX) design.

UX design can be defined as the design of digital products, from apps to websites and tools. It is the process of creating digital or physical products that are easy, functional, and enjoyable to use. It focuses on the overall feel of the experience, ensuring products are intuitive and meet user needs through research, testing, and strategic design, rather than just aesthetics.

UX design combines problem-solving and visual design to make digital products feel intuitive and rewarding to use. It centers on understanding your users’ behaviors and goals so you can build experiences that truly work for them.

UX designers prioritize the user at every step of the design process, helping product teams create solutions that their target audience will return to again and again.

UX and user interface (UI) design are often used interchangeably, but they focus on different parts of the experience.

UX design is about a user’s overall experience with a product. This involves thorough research and testing to pinpoint exactly what users expect from a product. UX designers use these findings to design intuitive and enjoyable products.

UI design focuses on the visual elements—the buttons, colors, and layouts that users interact with. It’s about creating interfaces that are aesthetically pleasing and easy to navigate.

To go a little deeper, let’s overview the main elements of UX design.  

Elements of UX design

1. Usability

Usability is the main focus of UX experts: this is what separates user experience design from other branches of design.

Usability includes:

• Navigation, so users can easily find what they’re looking for.

• Familiarity, to lessen the learning curve with new products or features.

• Consistency, to avoid confusion and have a harmonic look.

• Error prevention, to, well, prevent errors.

• Feedback, so when a user does something on a digital surface, they get a visual reinforcement that the action has been noted.

• Visual clarity, to ease cognitive load.

• Flexibility and efficiency, without which no design can function well.

2. User research

User research informs design decisions by gathering and analyzing insights on user needs, behaviors, and motivations, as well as pain points and solutions. One of the most powerful ways to empathize with users is to create user personas. These fictional characters represent your target audience and help you understand their motivations, goals, and challenges. By putting yourself in your users’ shoes, you can design products that meet their specific needs. Many teams now use AI to help sort through large sets of feedback and surface patterns that might be hard to spot on their own.

Main methods used in user research include:

• Interviews and surveys

• Observations and field studies

• Usability testing and A/B testing

• Card sorting and tree testing

• Persona creation and user journey mapping

Main outcomes of user research provide:

• Insights into user preferences and expectations

• Validation of design concepts and prototypes

• Metrics for measuring usability and satisfaction

• Recommendations for product improvements and feature prioritization

3. Visual design

Visual design in UI, often called the "look and feel," is about defining the mood and character of your digital product.

The visual design process typically involves:

• Early workshops uncover core values, user expectations, and visual preferences.

• Research and moodboards translate these ideas into visual inspiration.

• Designers create and compare variations to explore possible directions.

• Feedback ensures the chosen design reflects business goals and user needs.

This  process defines your product’s identity before diving into detailed UI work.

4. Information architecture

Information architecture is the method to organize information and ease navigation, understanding and overall usability. UX researchers and designers will usually map out hierarchies and look for ways to simplify your product’s structure. 

Elements of your information architecture include:

• Your sitemap (a tree of all pages)

• Navigation (menus and linking)

• Footer (where your deeper links live)

• IA diagram (a life-saving document outlining your entire IA in detail)

5. Interaction design

The final element of UX design is interaction design, which, as its expressive name shows, is the design of how users interact with your product. The easier they can achieve their goals, the better the design. 

Interaction design has 5 component, aka dimensions:

• UX copy (think labels, CTA text, etc) 

• Graphical elements (typography and icons)

• Context (the consideration of the device used by users and their real-world location)

• Time (motion design, videos, sound, or any other design element that needs to be timed)

• Behavior (of the product: what it does, and what prompts the behavior)

Let’s see how UX design companies combine all elements of UX design in practice.

What does a UX design agency do?

They design more than cool looks

UX design brings together design, business, and psychology. Designers create products that balance what users want, what your company needs, and what technology can do. 

UX designers can do usability testing and user interviews, but when their work is supported by UX researchers, they have additional methods to get valuable data, from strategic business insights to data synthesis and robust research repositories. 

They bring in their collective experience

As Kraftbase CEO Dhaval Agarwal put it,  “a UX team is not just a group of UX people.” Top UX agencies vet their talent so they have diverse skill sets, strengths and experiences. UX teams work together to find the best solutions, share ideas, reviews, and advice. Lone freelancers don’t enjoy this kind of professional support. 

They rely on well-tested methods

UX design agencies have years or decades to perfect their methods, and believe us when we say: they make the most of it. 

While UX best practices are standard, each agency will be shaped by their collective experiences, hundreds of client collaborations, and learnings from old mistakes, which will all be well documented.  This helps them to onboard quickly and have a playbook at the ready that they will customize to the client’s needs.  

They find and fix problems

A good UX designer does as they’re told. A great UX designer goes over and beyond for their clients. When they discover issues related to efficiency, user satisfaction, learnability, memorability, or find flat out errors, they aren’t afraid to alert the client, ask questions and offer solutions. UX agencies that value proactivity will always seek to bring additional value to their projects. 

How to measure the business outcomes of UX design?

When you work with a UX design agency, don’t just track design quality. You should connect UX results directly to business outcomes. 

• Define baseline business metrics (conversion, retention, support tickets, time-to-market).

• Benchmark current experience (through usability tests, analytics, surveys).

• Measure the “delta” after UX improvements.

• Translate improvements into either revenue gains or cost savings.

Let’s see these in practice. 

1. Business KPIs for UX metrics

Examples:

• Conversion rate. E.g. redesign leads to demo requests increasing from 3% → 6% of visitors.

• Retention / churn. E.g. improved onboarding reduces drop-off within X days.

• Support tickets. E.g. a better dashboard reduces support calls by X%.

• Task completion time. E.g. internal tools redesigned so onboarding time drops from X  weeks to Y days → multiplied across your user base, that’s a cost/time saving.

• Form completion rate. E.g. percentage of completed submissions after multi-step signup form was simplified.

• Error rates. E.g. fewer failed transactions or input mistakes.

💡 Tip: Always define these KPIs before starting with an agency, so both sides are aligned on what “success” means.

2. Customer metrics (CX + loyalty)

User satisfaction ties directly into long-term value:

• CSAT / NPS improvement. Track before/after design work.

• Customer lifetime value (CLV). Improved UX boosts repeat usage and retention.

• Cost per acquisition (CPA). A trial flow designed by a top UX design agency reduces  ad dollars needed per new lead.

• Improved acquisition. A smoother signup experience increases new user growth.

💡 Tip:  Start reporting as soon as possible, and collect data religiously. 

3. Financial modeling of UX impact

For C-level buy-in, translate design into dollars:

• Example: If checkout improvements increase conversion by 10% on a $50M GMV business, that’s $5M incremental revenue.

• Example: If a tool saves employees 5 minutes per day, with 500 employees, that’s ~2,000 hours per month → cost saving of $X/year.

💡 Tip:  Involve stakeholders early in goalsetting. 

How to measure the ROI of UX research

UX research, just like UX design, brings you concrete results. To measure the ROI of UX research, we suggest using the AARRR framework.

• Acquisition: research improves  messaging to convert more visitors.
  
  
  

  • Tip: Compare signup/purchase completion rates before vs. after research-informed changes.
    
    
    

• Activation : testing first-time use reduces friction, leads to more “aha!” moments.

  • Tip: Track % of new users reaching the “Aha!” moment during tests or live.

• Retention:  Solving real needs keeps users coming back.

  • Tip: Measure drop-off over 7,  30, 90 days pre/post research.

• Referral: satisfied users recommend your product to each other, cutting marketing costs.

  • Tip: Count reviews, recommendations, or invite-based signups.

• Revenue: more conversions lead to longer customer lifecycles.

  • Tip: Measure the following for tangible results:
    
    
    

    • Trial-to-paid conversion rate 

    • Average contract value (ACV)

    • Revenue per user (ARPU) 

    • Churn reduction / retention

    • Demo-to-deal velocity

Align with the researchers working on your project on what you consider success, and define realistic milestones in the roadmap together.

Searching for the right UX agency?
At Kraftbase, we combine strategic UX thinking. Our embedded teams usually include a designer plus a researcher, offering flexible solutions aligned with your business goals and user needs.
If product performance isn't where you need it to be—or if you're launching or redesigning—contact us for a tailored quote.