One-press control: A tactile input method for pressure-sensitive computer keyboards
One-press control is a research into a tactile input method for pressure-sensitive keyboards based on the detection and classification of pressing movements on the already held-down key. To seamlessly integrate the added control input with existing practices for ordinary computer keyboards, the redefined notion of virtual modifier keys is introduced. A number of application examples are given, especially to point out a potential for simplifying existing interactions by replacing modifier key combinations with single key presses. Also, a new class of interaction scenarios employing the technique is proposed, based on an interaction model named What You Touch Is What You Get (WYTIWYG). Here, the proposed tactile input method is used to navigate interaction options, get full previews of potential outcomes, and then either commit to one or abort altogether all in the space of one key depress / release cycle.
The results of user testing indicate some remaining implementation issues, as well as that the technique can be learned within about a quarter of an hour of hands-on operating practice time.

One-press control is published as an extended abstract at 28th ACM Conference on Human Factors in Computing Systems (CHI 2010), April 2010, Atlanta and is made together with Staas de Jong, Hanna Schraffenberger, Alwin de Rooij, Dünya Kirkali and Arnout Terpstra.

The One-press control and the WYTIWYG interaction model has been demoed at the Microsoft student innovation contest and be presented as a poster presentation at the UIST 2009 conference in Victoria, Canada.