UX Design

A system can be perfectly usable — effective, efficient and satisfying in the technical sense that ISO standards assign to these terms — and yet leave the user indifferent, cold, without any sense of involvement. It can work well and not be liked. It can be clear and yet not be memorable. It can solve a problem and generate no sense of trust, belonging or desire to return. This space, the one that exists beyond correct functionality, is the territory of User Experience.

User Experience is the overall evaluation, judgement or estimate of the subjective and conscious encounter that a user has with an artefact through interaction, occurring in a particular context and moment. It is not a property of the system: it is a response of the person. It cannot be measured by performance indicators alone: it requires listening, observing and interpreting.

UX and Usability: a relationship of inclusion, not opposition

One of the most widespread misconceptions in the digital sector is treating usability and UX as synonyms, or worse, as alternative concepts. They are neither. Their relationship is one of inclusion: usability is a subset of User Experience, its indispensable functional core, but not its totality.

Usability answers precise and measurable questions: did the user achieve their goal? In how much time? With how many errors? With what degree of functional satisfaction? These are questions oriented towards the task, towards performance, towards the pragmatic interaction with the system.

User Experience embraces all of this and adds a broader and deeper dimension. It encompasses the aesthetic response to the interface, the emotions aroused during and after interaction, the sense of identity and belonging that a product can convey, the expectations the user brings before even beginning to interact, the memories and associations the experience leaves behind — everything that transforms a functional interaction into a meaningful experience.

UX is not UI

Before exploring how User Experience is designed, it is worth clarifying a distinction that is often overlooked in the sector, with concrete consequences on the quality of projects: the difference between UX and UI.

The User Interface is the visible surface of the system: colours, typefaces, buttons, icons, screen layouts, animations. It is the level with which the user comes into visual and tactile contact. It is important, necessary, and requires specific skills in visual design and interaction design.

User Experience operates at a structurally different and prior level. Before any interface exists, someone must have answered fundamental questions: who are the users and what are their real needs? What is the logical flow of tasks the system must support? How is the information structure organised? What are the critical moments in the user journey? Where do frustrations, misunderstandings and drop-offs arise?

These are UX questions, not UI questions. It is entirely possible to have a visually excellent interface that conceals a deeply deficient User Experience. And conversely, a solidly designed UX makes almost any visual choice effective, because the underlying structure is sound.

How Esario designs User Experience

User Experience design at Esario always begins with a question that sounds simple and is anything but: what does it mean, for this specific user, in this specific context, for the experience to have succeeded?

User research

Interviews, contextual observation, analysis of real behaviours, construction of personas and use scenarios. Design is never for an abstract user: it is for real people, with their own histories, constraints, expectations and specific competencies.

Experience architecture

The definition of interaction flows, user journeys, critical touchpoints, moments where the system must respond not only functionally but in an emotionally appropriate way. This is the phase where information structure, navigation systems and flow design come together into a coherent vision of the overall experience.

Prototyping, visual design and testing

The process moves through progressive levels of fidelity, each serving a distinct purpose. Low-fidelity wireframes validate the structural logic of flows and information hierarchy before any visual investment is made. As the design matures and the structural decisions are confirmed, higher-fidelity prototypes bring a new dimension into play: visual design.

Starting from the client's brand identity and coordinated image, Esario develops high-fidelity mockups that combine colour, typography, imagery and layout into a coherent visual language. Colour communicates hierarchy, guides attention and reinforces the emotional register of the brand. Typography shapes readability and personality simultaneously. Imagery and illustration carry meaning and tone that words alone cannot convey. Layout creates the spatial logic that guides the user's eye and makes navigation intuitive before a single label is read.

This is the phase where functional correctness and aesthetic quality converge: the prototype is no longer a diagram of intent but a representation of the actual experience, close enough to the final product that users can respond to it as they would respond to the real thing. Esario runs usability and experience testing on these high-fidelity prototypes, measuring not only effectiveness and efficiency but also the aesthetic response, the emotional quality and the sense of trust and identity the system conveys. The insights from testing feed back directly into the visual design, refining the choices that are not working and confirming those that are.

Iterative refinement

Test results feed back into the design, correcting, simplifying, enriching. UX is not a deliverable handed over once: it is a continuous process of listening, measuring and improving.

Esario applies this process across the Hotels, E-Commerce, Finance and Bio-Medical sectors, where the experiential expectations of users differ profoundly and require equally varied research and design approaches.

User Experience and Artificial Intelligence

Artificial Intelligence is opening new and concrete possibilities in the design and evaluation of User Experience — in the deep understanding of users, in the personalisation of experience, and in the measurement of dimensions that were previously difficult to quantify.

In the research phase, AI models make it possible to analyse large volumes of behavioural, textual and visual data to identify recurring experience patterns, segments of users with similar needs, and critical moments in the journey that traditional research methods might not detect with the same depth. Sentiment analysis applied to feedback data, reviews and support sessions makes it possible to build an emotional map of the current experience that is far richer and more articulated than was previously achievable.

In design, AI-assisted generative tools accelerate the production of prototype variants and visual design options, making it possible to explore a greater number of solutions in less time and to bring to testing options that would otherwise not have had the time to be developed. In the visual design phase specifically, AI tools can generate colour palette explorations, typographic combinations and layout variations at a speed that significantly expands the design space before final decisions are made.

In personalisation, AI-based systems allow the experience to be dynamically adapted to the profile, behaviour and context of each individual user — approaching the ideal of a UX that responds not to an average user but to a real person, with their own history and specific preferences.

In measurement, multimodal analysis models integrate behavioural, physiological and textual data to produce an estimate of perceived experience quality that is far more complete than satisfaction questionnaires alone can provide.