Disambiguation

In accessible interface design, disambiguation is the process of resolving ambiguity when a user's input could correspond to more than one interactive target. This commonly occurs on touchscreens where small, densely packed elements make precise selection difficult, particularly for users with motor impairments. Disambiguation techniques include magnifying the target area, presenting a list of nearby targets for the user to choose from, or expanding touch regions to reduce the precision required. Effective disambiguation is critical for making mobile and web interfaces usable by people with tremor, limited dexterity, or other conditions that affect pointing accuracy.