Exploring Visual Signifier Characteristics to Improve the Perception of Affordances of In-Place Touch Inputs

Touch screens supporting different inputs such as 'Tap', 'Dwell', 'Double Tap' and 'Force Press' are omnipresent in modern devices yet this variety of interaction opportunities is rarely communicated to the user. Without visual signifiers, these potentially useful remain unknown or underutilised. We propose a design space signifier characteristics that may impact perception in-place one finger inputs. generated 36 designs investigated their an online survey (N=32) interactive experiment (N=24). The results suggest signifiers increase input possibilities beyond reduce perceived mental effort for participants, who also prefer added over baseline. Our work informs how future touch-based interfaces could be designed better communicate single possibilities.