Authors: Julian Seifert David Dobbelstein Dominik Schmidt Paul Holleis Enrico Rukzio
Publish Date: 2013/04/24
Volume: 18, Issue: 4, Pages: 1013-1026
Abstract
Interactive horizontal surfaces provide large semipublic or public displays for colocated collaboration In many cases users want to show discuss and copy personal information or media which are typically stored on their mobile phones on such a surface This paper presents three novel direct interaction techniques SelectPlace2Share SelectTouch2Share and ShieldShare that allow users to select in private which information they want to share on the surface All techniques are based on physical contact between mobile phone and surface Users touch the surface with their phone or place it on the surface to determine the location for information or media to be shared We compared these three techniques with the most frequently reported approach that immediately shows all media files on the table after placing the phone on a shared surface The results of our user study show that such privacypreserving techniques are considered as crucial in this context and highlight in particular the advantages of SelectPlace2Share and SelectTouch2Share in terms of user preferences task load and task completion time
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