UX Design transforms an intention into an experience. We start from user research insights (interviews, observation, analytics) to map real needs and obstacles. Then we structure the information architecture, sequence journeys, and materialise ideas via wireframes and UI mockups. Each step is validated through rapid prototype-testing: an honest test is better than an endless debate. Our approach avoids the superfluous: just the right amount of interactions, text, and feedback. We design with accessibility in mind (contrast, focus, keyboard navigation, alternatives) and integrate lean principles into Design (reusable components, controlled weight). Once a solution stabilises, we consolidate it into a Design System (tokens, components, guidelines) to speed up development (front to back) and facilitate maintenance. We document acceptance criteria, synchronise with product governance (roles, rituals, decisions), and keep the door open to product discovery. The link with the other two hubs is natural. With consulting, we refer back to strategic framing to align strategy, vision, and roadmap, to audits to objectify choices, and to training-sensitisation to spread best UX and accessibility practices. With tech, we prepare delivery: APIs (contracts, errors), API automation (flows, webhooks), CI/CD (continuous integration), and sustainable web performance (budgets, Core Web Vitals, Lighthouse/Ecograder). When an AI integration adds real value (assistants, search, ranking), we frame it sparingly. Deliverables: annotated flows, high-clarity wireframes, dev-ready mockups, tested prototypes, Design System rules, UX backlog, experience KPIs. Outcome: an experience that breathes, more accessible, higher performing, easier to evolve — with strong bridges to consulting and tech.