Universal design is a design approach that aims to create products, environments, and systems that are usable by all people, regardless of age, ability or disability. It focuses on designing for diversity and inclusivity, by considering the needs of a wide range of users from the outset. The goal of universal design is to create products and environments that are accessible, functional, and aesthetically pleasing for everyone, without the need for adaptation or specialized design features. This approach can be applied to a wide range of fields, including architecture, urban planning, product design, and technology.