Baudisch-2003

Baudisch-2003 - Drag-and-Pop and Drag-and-Pick: techniques...

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Drag-and-Pop and Drag-and-Pick: techniques for accessing remote screen content on touch- and pen-operated systems Patrick Baudisch 1 , Edward Cutrell 1 , Dan Robbins 1 , Mary Czerwinski 1 , Peter Tandler 2 , Benjamin Bederson 3 , and Alex Zierlinger 4 1 Microsoft Research, Redmond, WA; 2 Fraunhofer IPSI, Darmstadt, Germany; 3 HCIL, University of Maryland, MD; 4 Maila Push, Darmstadt, Germany {baudisch, cutrell,czerwinski, dcr}@microsoft.com; tandler@ipsi.fhg.de; bederson@cs.umd.edu; alex@zierlinger.de Abstract: Drag-and-pop and drag-and-pick are interaction techniques designed for users of pen- and touch- operated display systems. They provide users with access to screen content that would otherwise be impossible or hard to reach, e.g., because it is located behind a bezel or far away from the user. Drag-and-pop is an exten- sion of traditional drag-and-drop. As the user starts dragging an icon towards some target icon, drag-and-pop responds by temporarily moving potential target icons towards the user’s current cursor location, thereby allow- ing the user to interact with these icons using comparably small hand movements. Drag-and-Pick extends the drag-and-pop interaction style such that it allows activating icons, e.g., to open folders or launch applications. In this paper, we report the results of a user study comparing drag-and-pop with traditional drag-and-drop on a 15’ (4.50m) wide interactive display wall. Participants where able to file icons up to 3.7 times faster when using the drag-and-pop interface. Keywords: Drag-and-drop, drag-and-pick, interaction technique, pen input, touchscreen, heterogeneous display. 1 Introduction With the emergence of pen- and touch-operated per- sonal digital assistants (PDAs), tablet computers, and wall-size displays (e.g., Liveboard, Elrod et al., 1992; Smartboard, http://www.smarttech.com), touch and pen input have gained popularity. Over the past years, more complex display systems have been created by combining multiple such display units. Wall-size touch displays have been combined into display walls, such as the DynaWall (Streitz 2001), or the iRoom Smartboard wall (Johanson, 2002b). Recent PDAs and tablet computers allow connecting additional displays, such as another tab- let or a monitor in order to extend the device’s inter- nal display space. Touch/pen-operated screens that consist of mul- tiple display units bring up a new class of input chal- lenges that cannot always be solved with existing techniques, because many of the existing techniques were designed for indirect input devices, such as mice, track pads, or joysticks. Indirect input devices can be used on arbitrary display configurations, be- cause they can simply be mapped to the respective topology (e.g., PointRight, Johanson 2002a). Touch/ pen input, however, is based on the immediate b c d Figure 1: Drag-and-pop a correspondence between input space and display space and thus requires users to adapt their input behavior to the physicality of the display system.
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Baudisch-2003 - Drag-and-Pop and Drag-and-Pick: techniques...

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