From Wikipedia: "Inclusive design is a design process (not restricted to interfaces or technologies) in which a product, service or environment is optimized for a specific user with specific needs. Usually, this user is an extreme user, meaning that this user has specific needs that are sometimes overseen with other design processes. By focusing on the extreme users, Inclusive design will enable them to be able to use it, while many users having (temporary) similar needs will also be covered."
The term "universal design" was coined by the architect Ronald Mace to describe the concept of designing all products and the built environment to be aesthetic and usable to the greatest extent possible by everyone, regardless of their age, ability, or status in life. However, it was the work of Selwyn Goldsmith, author of Designing for the Disabled (1963), who really pioneered the concept of free access for people with disabilities. His most significant achievement was the creation of the dropped curb – now a standard feature of the built environment.
Universal design emerged from slightly earlier barrier-free concepts, the broader accessibility movement, and adaptive and assistive technology and also seeks to blend aesthetics into these core considerations. As life expectancy rises and modern medicine increases the survival rate of those with significant injuries, illnesses, and birth defects, there is a growing interest in universal design. There are many industries in which universal design is having strong market penetration but there are many others in which it has not yet been adopted to any great extent. Universal design is also being applied to the design of technology, instruction, services, and other products and environments."
Hebdon, Heather M. "Universal design: making education accessible to all students." The Exceptional Parent, vol. 37, no. 5, May 2007, p. 70. Gale OneFile: Health and Medicine, link.gale.com/apps/doc/A164105461/GPS?u=txshracd2579&sid=GPS&xid=bc87a7dd. Accessed 5 Feb. 2021.