Multimodal redundancy

A design principle in which the same information is conveyed through multiple sensory channels simultaneously — such as visual, tactile, auditory, and textual — so that users can access it through whichever modality suits their abilities and preferences. Multimodal redundancy is fundamental to inclusive design because it ensures that no single sensory barrier prevents access to critical information. Examples include colour-coded components that also have distinct tactile textures and audio labels, or error messages conveyed through both visual alerts and screen reader announcements.