Accessible design is very similar to Universal Design except that the unique requirements of an individual are taken into consideration for the design. Just as an individual may prefer or require something personalized, the person with a disability may choose the elements of accessibility that he/she wants to use. Universal Design is not personalized; everyone is capable and can equally use structures that are designed with UD in mind.
Accessible design utilizes larger spaces, wider lanes, operations that can be accomplished either sitting or standing, with an open hand or a closed fist, just to mention a few of the possible variables. A medical history is useful to understand the current situation and to anticipate future needs.
Traditional accessibility features such as wider doors, taller toilets, curb less showers, right foot accelerators, telephone voice amplification, and alternative input devices for the computer, instead of keyboards and pointing devices, are common features and technologies that allow people with special needs to participate or live in an activity that was not available to them previously.