An evaluation of techniques for controlling focus+context screens
Mark J. Flider, Brian P. Bailey · Illinois Digital Environment for Access to Learning and Scholarship (University of Illinois at Urbana-Champaign) · 2004
We evaluated four techniques for controlling fo-cus+context screens. We compared an egocentric ver-sus exocentric View mixed with whether the display on the focus screen moves in the same (paper mapping) ver-sus opposite (scroll mapping) direction as input force. Our results show that (i) View had little effect, (ii) users almost always allocated attention to the context screen when controlling the display, (iii) scroll mappings en-abled a user to perform tasks faster, commit fewer er-rors, and be more satisfied with the system compared to paper mappings, and (iv) a user can better control fo-cus+context screens when the frame of reference either does move or is perceived to move in the direction of in-put force. We discuss these results and recommend how to enable a user to better control focus+context screens.