What is user experience (UX)?

Definition of user experience

User experience, or UX (user experience), refers to the overall experience a user forms when interacting with a product, service, or system.

The concept encompasses all the feelings, perceptions, attitudes, and reactions that arise for the user before, during, and after use.

User experience is not a single moment but a continuum that begins from the first time the user hears about the product.

It extends from the first impression all the way to a long-term usage relationship and potential recommendation.

The concept was popularized by cognitive scientist Don Norman in the 1990s while working at Apple.

Norman wanted a term that covers all dimensions of the interaction between a human and a system – not just the user interface or usability, but also emotions, context, and expectations.

The ISO 9241-210 standard defines user experience as follows:

“A person’s perceptions and responses that result from the use or anticipated use of a product, system, or service.”

Key components of user experience

What elements is UX built from?

A successful user experience is built on several interconnected factors. Peter Morville’s “UX Honeycomb” (User Experience Honeycomb) describes seven key attributes that together form a valuable user experience:

Useful – The product must meet a real need. If the product does not solve the user’s problem, the other attributes are irrelevant.
Usable – The product must be easy and efficient to use. The user should be able to achieve their goals without unnecessary effort.
Findable – The user must be able to find the information or functionality they need quickly. The importance of navigation and information architecture is emphasized.
Credible – The user must be able to trust the product and the information it provides. Trust is built on consistency and transparency.
Accessible – The product must be usable by everyone, including people with disabilities.
Desirable – Visual design, branding, and emotional responses make the product appealing.
Valuable – The product must deliver value to both the user and the business.

In addition to these, user experience is influenced by technical performance, loading speed, responsiveness, and content quality. When all areas work seamlessly together, the result is an experience that feels effortless and pleasant to the user.

UX vs. UI – what’s the difference?

Two different concepts that complement each other

UX and UI are often mixed up with each other, but they are two distinct areas, both of which are essential for creating a successful product.

Feature	UX (User Experience)	UI (User Interface)
Focus	Overall experience and user needs	Visual appearance and interaction elements
Question	“Does this work for the user?”	“Does this look good and feel right?”
Content	User research, information architecture, user journeys	Typography, colors, icons, animations
Tools	User interviews, wireframes, user personas	Figma, Sketch, Adobe XD
Comparison	The house’s floor plan and functionality	The house’s interior design and surface materials

Simplified: A UX designer ensures that the product works logically and solves the user’s problem, while a UI designer takes care that the product looks visually appealing and is pleasant to use. The best end result is achieved when both areas go hand in hand.

Why does user experience matter?

Business impacts

User experience directly affects the commercial success of a product or service. It’s not just about aesthetics, but about measurable business results.

Statistics that speak for themselves:

Every euro invested in UX design returns an average of 100 euros (Forrester Research).
88% of web users do not return to a site after a bad experience.
When the interface load time increases from 1 second to 3 seconds, bounce rate increases by 32%.
Companies that invest in UX design grow their revenue up to 37% faster than their competitors.

Areas impacted by user experience:

Customer satisfaction – A smooth experience creates satisfied customers who return again.
Conversion rate – A well-designed user journey guides the user smoothly towards the desired action, such as a purchase or contact.
Customer loyalty – A positive experience strengthens users’ commitment to the brand.
Willingness to recommend – Satisfied users recommend the product to others, which reduces customer acquisition costs.
Support costs – An intuitive product reduces the burden on customer service and the number of support requests.
Brand reputation – Poor user experience can damage reputation for a long time, especially in the age of social media.

Different forms of user experience

Digital, physical and omnichannel experience

User experience is not limited to just the digital environment. It manifests in many different forms and contexts:

Digital UX – Websites, mobile applications, software, gaming platforms and digital services. This is the most common context in which UX is discussed.
Physical UX – Physical products, such as household appliances, cars, furniture and packaging. How does the product feel in the hand? Is the user manual understandable?
Service UX – Service experiences, such as a hotel stay, healthcare services or public transportation. Service design focuses on this area.
Omnichannel UX – An experience that seamlessly combines multiple channels. For example, an order started in an online store that can be picked up in a physical store.

The experience can be positive, negative or neutral in nature. It is influenced by the user’s expectations, context, previous experiences, mental state and even cultural background. The same product can create a very different experience for different users.

UX design process step by step

This is how user experience is designed in practice

UX design is an iterative process that typically progresses through the following stages:

1. Research
Everything starts with understanding the users. In this phase, information is gathered about the target audience, their needs, pain points, and behavior patterns. Methods used include interviews, surveys, observation, and competitor analysis.

2. Define
Based on the research results, user personas, user stories, and the key problems that the product must solve are defined. In this phase, a clear picture is created of who is being designed for and why.

3. Ideate
Ideation is a creative phase where as many solution options as possible are sought for the identified problems. Tools used include, for example, brainstorming, mind maps, and sketching.

4. Prototype
Concrete prototypes are built from the ideas, which can be simple paper models or interactive digital prototypes. The purpose is to test ideas quickly and cost-effectively.

5. Test
Prototypes are tested with real users. Testing helps identify problem areas, gather feedback, and ensure that the planned solution truly works from the users’ perspective.

6. Implement & Iterate
The tested solution is implemented and published. However, the process does not end here – the user experience is monitored and continuously developed based on new observations and feedback.

UX Research Methods

How are users researched?

UX research is divided into two main categories: qualitative and quantitative research. Both are needed to achieve a comprehensive understanding.

Method	Type	Description	When to use
User interviews	Qualitative	In-depth discussions with users about their needs and experiences	At the beginning of the project and during development
Usability testing	Qualitative	Users perform tasks with the product while an observer watches	In the prototyping phase and after launch
A/B testing	Quantitative	Comparison of two versions with a statistically significant sample	In the optimization phase
Surveys	Quantitative	Broad surveys that collect numerical data from a large group	Mapping the starting situation and monitoring
Card sorting	Qualitative	Users group content into logical entities	In information architecture design
Eye-tracking research	Quantitative	Tracking where the user’s gaze is directed on the screen	In evaluating visual hierarchy
Analytics	Quantitative	Analysis of user data (clicks, paths, bounce rates)	Continuous monitoring and optimization
Diary studies	Qualitative	Users document their experiences over a longer period of time	In understanding long-term user experience

The best results come from a combination of both approaches: qualitative research reveals why users behave in a certain way, and quantitative research tells how many behave the same way.

Key Tools for UX Design

What tools do UX professionals use?

The toolkit of UX designers is extensive and varies according to the project phase:

Design and Prototyping:

Figma – A browser-based design tool that enables real-time collaboration. The leading tool in the industry.
Adobe XD – Adobe’s design and prototyping tool.
Sketch – A macOS-based design tool, particularly popular among UI designers.
Axure RP – A versatile tool for complex interactive prototypes.

User Research and Testing:

Hotjar – Heatmaps, recordings, and feedback tools for analyzing user behavior.
Maze – A remote testing tool for prototypes.
UserTesting – A platform for conducting usability tests with real users.
Optimal Workshop – Card sorting, tree testing, and survey tools.

Collaboration and Documentation:

Miro / FigJam – Visual collaboration platforms for brainstorming and workshops.
Notion / Confluence – Documentation and knowledge sharing within the team.
Jira / Linear – Task management and development tracking.

How is user experience measured?

Key UX metrics and KPIs

Measuring user experience is essential to guide development work based on data. The most important metrics can be divided into three categories:

Behavioral Metrics:

Task Success Rate – What percentage of users successfully complete the task?
Task Completion Time – How long does it take the user to complete the task?
Error Rate – How many errors does the user make during the process?
Bounce Rate – How many users leave the site immediately?
Conversion Rate – What percentage of users complete the desired action?

Attitudinal Metrics:

NPS (Net Promoter Score) – How likely is the user to recommend the product? On a scale of 0–10.
SUS (System Usability Scale) – A standardized 10-question usability survey that gives a score from 0–100.
CSAT (Customer Satisfaction Score) – Direct measurement of customer satisfaction.
CES (Customer Effort Score) – How easy was it for the customer to complete the desired task?

Business Metrics:

Retention Rate – How many users return to the product?
Customer Lifetime Value (CLV) – How much value does the customer generate throughout the entire customer relationship?
Number of Support Requests – An intuitive product reduces the need for support.

The Most Common UX Design Mistakes

What should you avoid?

The user experience of many products suffers from recurring design flaws. Identifying these helps avoid costly fixes later on:

Skipping user research – Design is based on assumptions and guesses instead of real user data. This is by far the most common and expensive mistake.
Excessive complexity – Adding features without a clear need leads to a confusing user experience. Less is often more.
Inconsistent design – Different parts of the product use varying terminology, navigation, or visual styles, which confuses the user.
Neglecting accessibility – The product is not designed for all users, which excludes part of the target audience and may violate legal requirements.
Slow performance – Long loading times frustrate users and lead to immediate exits.
Unclear calls to action – The user does not understand what they are expected to do next.
Lack of mobile optimization – Over half of web traffic comes from mobile devices, but many services are primarily designed for desktop use.
Missing feedback – The system does not tell the user whether an action succeeded or if an error occurred.

How can user experience be improved?

Practical ways to better UX

Building a high-quality user experience requires a systematic approach. Here are concrete ways to get started:

Understand your users:

Conduct regular user interviews and observations.
Create user personas based on real research data.
Map user journeys (customer journey maps) to identify pain points.

Design iteratively:

Build prototypes and test them early – don’t wait for a finished product.
Use wireframes before visual design.
Utilize A/B testing to compare alternative solutions.

Collect and utilize feedback:

Collect feedback continuously from various channels: in-app surveys, support requests, reviews, and social media.
Monitor analytics and identify behavioral patterns from the data.
Prioritize improvements based on impact and feasibility.

Consider accessibility:

Follow WCAG guidelines (Web Content Accessibility Guidelines).
Test the product with assistive technologies, such as screen readers.
Ensure sufficient color contrasts and clear typography.

UX field roles and career paths

Who does UX work?

The UX field offers diverse career opportunities. The most common roles are:

Role	Main Task	Key Skills
UX Designer	Comprehensive user experience design	User research, prototyping, interaction design
UI Designer	Visual user interface design	Visual design, typography, colors, design systems
UX Researcher	Planning and conducting user research	Research methods, interview techniques, data analysis
Information Architect	Designing the structure of content and navigation	Information structures, card sorting, content strategy
Interaction Designer	Interaction patterns and micro-interactions	Animations, user flows, prototyping
Service Designer	Designing comprehensive service experiences	Service journeys, stakeholder mapping, co-design
UX Writer	Designing user interface texts	Microcopy, plain language, tone of voice

UX expertise is needed more widely – not only in the technology sector, but also in healthcare, finance, public services, and education.

The Future of User Experience

Where is UX heading?

The user experience field is constantly evolving with new technologies and user expectations. Key trends include:

Artificial Intelligence and Personalization – AI enables real-time adaptation of the user experience based on user behavior, preferences, and context.
Voice and Conversation-Based Interfaces – Solutions based on voice control and chatbots are becoming more common, requiring new skills from UX designers.
Accessibility as a Legal Requirement – The EU Accessibility Directive and other regulations make accessibility mandatory, not optional.
Ethical Design – Avoiding user manipulation (dark patterns) and increasing transparency are emphasized.
Augmented and Virtual Reality (AR/VR) – New platforms require a completely new kind of UX design in three-dimensional space.
Data-Driven Design – Decisions are increasingly based on analytics and metrics rather than intuition.
Sustainable Design (Sustainable UX) – Considering environmental impacts in the design of digital services, such as minimizing data and energy consumption.

User Experience is an Investment

Summary

User experience is a central part of product and service design, and its importance should never be underestimated. Investing in user experience means investing in customer relationships, competitiveness, and long-term success.

Key takeaways summarized:

UX covers the user’s entire experience – not just the user interface.
Good user experience is always based on research, not assumptions.
UX and UI are different things, but both are essential.
Measure, test, and iterate – user experience is never finished.
Accessibility is not an extra feature, but a basic requirement.
Every interaction moment with the user is an opportunity to build trust and stand out from the competition.

Regardless of whether you are designing a website, a mobile application, a physical product, or a service package – placing user experience at the center of design is the best investment you can make.

What is user experience (UX)?