Learnability

A usability attribute measuring how easy it is for users to accomplish basic tasks the first time they encounter a design. High learnability means new users can quickly become productive with a system. For accessibility, learnability is particularly important because users with cognitive disabilities or older adults may face additional challenges learning new interfaces. Design strategies to improve learnability include consistent interaction patterns, clear affordances, progressive disclosure of complexity, undo functionality to encourage exploration, and step-by-step guidance. Learnability is one of Nielsen's five usability components, alongside efficiency, memorability, errors, and satisfaction.