Prior Knowledge

Information and experience a user brings to a technology interaction before it begins, including technical knowledge of how devices work, functional knowledge of task goals, strategic knowledge of problem-solving approaches, and self-knowledge of personal abilities and limitations. In accessible design, understanding target users' prior knowledge is essential for creating interfaces that build on familiar concepts rather than requiring users to learn entirely new interaction patterns. Designs that leverage prior knowledge reduce cognitive load and learning time, while mismatches between design assumptions and actual user knowledge create barriers.