Intrinsic accessibility

A property of a user interface whose underlying architecture inherently supports adaptation across a broad range of user capabilities, as distinct from functional accessibility which addresses specific user profiles through bolt-on assistive technology. An intrinsically accessible interface exposes the semantic and contextual meaning of its content and navigation, enabling interaction to adapt to the most appropriate metaphor set and design space (visual, sonic, or haptic) for any given user. The concept was articulated by Robert Dodd (2006) in the context of handheld mobile devices, where existing assistive technology solutions such as screen readers and bespoke keyboards addressed specific disabilities but were fundamentally constrained by the visual metaphors of the underlying operating system. Intrinsic accessibility represents a superset of self-adaptability, requiring that accessibility be an architectural concern rather than a retrofit.