shift patrick baudisch :: dan vogel

pen unique contact point remove hand from screen finger unclear contact point finger occludes target

benefit 1 click on the target itself, as users expect  kiosk, but also when switching between pen and touch shift

corners benefit 2 callout can go anywhere, no edge problems

model performance benefit 3 fast for large targets

by default:dwell time extension:larger target  longer dwell time extension:shift learns dwell times when escalate? vs.

study

3 techniques x 2 finger styles (nail, tip) x 3 blocks x 6 target sizes (6, 12, 18, 24, 48, 96px) x 4 target directions

huge error rate renders touch screen condition unusable for small targets result

we can add whatever we want to add to this

added zoom

activation

motivation retrieving stylus takes time and 2 nd hand  people use finger instead