In UX (User eXperience) design, responsible for: - interface operational testing - acquiring new user experience from interface use - compliance of interface with corporate style - ease and clarity of the interface - interface work speed

In UX (User eXperience) design, the main task is to ensure the convenience and clarity of the interface for the user. This means that UX is responsible for making the interaction with the product intuitive, efficient, and enjoyable.

Other points, such as:

• experienced operation of the interface (testing) — is part of QA or usability testing,
• acquiring new experience by the user — is more a result of good UX,
• compliance with corporate style — is the task of UI design,
• interface speed — relates to performance and optimization,

but the key area of responsibility for a UX designer is precisely the convenience and clarity of the interface.