Number of co-authors:7
Number of publications with 3 favourite co-authors:Andy Cockburn:5Carl Gutwin:3Géry Casiez:1
Philip Quinn's 3 most productive colleagues in number of publications:Carl Gutwin:116Andy Cockburn:68Nicolas Roussel:24
A general principle for all user interface design is to go through all of your design elements and remove them one at a time. If the design works as well without a certain design element, kill it.
-- Jakob Nielsen, Designing Web Usability, p. 22.
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Publications by Philip Quinn (bibliography)
Quinn, Philip, Cockburn, Andy, Casiez, Géry, Roussel, Nicolas and Gutwin, Carl (2012): Exposing and understanding scrolling transfer functions. In: Proceedings of the 2012 ACM Symposium on User Interface Software and Technology 2012. pp. 341-350.
Scrolling is controlled through many forms of input devices, such as mouse wheels, trackpad gestures, arrow keys, and joysticks. Performance with these devices can be adjusted by introducing variable transfer functions to alter the range of expressible speed, precision, and sensitivity. However, existing transfer functions are typically "black boxes" bundled into proprietary operating systems and drivers. This presents three problems for researchers: (1) a lack of knowledge about the current state of the field; (2) a difficulty in replicating research that uses scrolling devices; and (3) a potential experimental confound when evaluating scrolling devices and techniques. These three problems are caused by gaps in researchers' knowledge about what device and movement factors are important for scrolling transfer functions, and about how existing devices and drivers use these factors. We fill these knowledge gaps with a framework of transfer function factors for scrolling, and a method for analysing proprietary transfer functions -- demonstrating how state of the art commercial devices accommodate some of the human control phenomena observed in prior studies.
© All rights reserved Quinn et al. and/or ACM Press
Quinn, Philip, Cockburn, Andy, Räihä, Kari-Jouko and Delamarche, Jérôme (2011): On the costs of multiple trajectory pointing methods. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 859-862.
Several enhanced pointing techniques aim to reduce the Fitts' law targeting distance by providing multiple target trajectories in the hope that a shorter path is available. However, these techniques introduce a search or decision component to pointing users must examine the alternatives available and decide upon the trajectory to use. We analyse these difficulties, present a methodology for examining them as well as other behaviour issues, and report empirical results of performance with pointer wrapping and Ninja cursors. Results show that offering multiple trajectories incurs a significant search or decision cost, and that users are therefore poor at capitalising on the theoretical benefits of reduced target distance.
© All rights reserved Quinn et al. and/or their publisher
Scarr, Joey, Cockburn, Andy, Gutwin, Carl and Quinn, Philip (2011): Dips and ceilings: understanding and supporting transitions to expertise in user interfaces. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 2741-2750.
Interface guidelines encourage designers to include shortcut mechanisms that enable high levels of expert performance, but prior research has demonstrated that few users switch to using them. To help understand how interfaces can better support a transition to expert performance we develop a framework of the interface and human factors influencing expertise development. We then present a system called Blur that addresses three main problems in promoting the transition: prompting an initial switch to expert techniques, minimising the performance dip arising from the switch, and enabling a high performance ceiling. Blur observes the user's interaction with unaltered desktop applications and uses calm notification to support learning and promote awareness of an alternative hot command interface. An empirical study validates Blur's design, showing that users make an early and sustained switch to hot commands, and that doing so improves their performance and satisfaction.
© All rights reserved Scarr et al. and/or their publisher
Quinn, Philip and Cockburn, Andy (2009): Zoofing!: faster list selections with pressure-zoom-flick-scrolling. In: Proceedings of OZCHI09, the CHISIG Annual Conference on Human-Computer Interaction 2009. pp. 185-192.
The task of list selection is fundamental to many user interfaces, and the traditional scrollbar is a control that does not utilise the rich input features of many mobile devices. We describe the design and evaluation of zoofing -- a list selection interface for touch/pen devices that combines pressure-based zooming and flick-based scrolling. While previous flick-based interfaces have performed similarly to traditional scrolling for short distances, and worse for long ones, zoofing outperforms (and is preferred to) traditional scrolling, flick-based scrolling, and OrthoZoom. We analyse experimental logs to understand how pressure was used and discuss directions for further work.
© All rights reserved Quinn and Cockburn and/or their publisher
Quinn, Philip, Cockburn, Andy and Gutwin, Carl (2008): An investigation of dynamic landmarking functions. In: Levialdi, Stefano (ed.) AVI 2008 - Proceedings of the working conference on Advanced Visual Interfaces May 28-30, 2008, Napoli, Italy. pp. 322-325.
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Changes to this page (author)23 Nov 2012: Modified05 Jul 2011: Modified
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