‘Design of products, environments, programmes and services to be usable by all to the greatest extent possible, with no need for adaptation or specialised design’ (UNESCO, 2020a, p. 420).
The Center for Universal Design at North Carolina State University conceived and developed the seven principles of Universal Design: equitable use, flexibility in use, simple and intuitive use, perceptible information, tolerance for error, low physical effort, and size and space for approach and use. It is copyrighted material (The Center for Universal Design, 1997).