Browsing by Author "Hancock, M."
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Item Metadata only Deconstructing the Touch Experience(ACM, 2013) Watson, D.; Hancock, M.; Mandryk, R.L.; Birk, M.In this paper, we evaluate the performance and experience differences between direct touch and mouse input on horizontal and vertical surfaces using a simple application and several validated scales. We find that, not only are both speed and accuracy improved when using the multi-touch display over a mouse, but that participants were happier and more engaged. They also felt more competent, in control, related to other people, and immersed. Surprisingly, these results cannot be explained by the intuitiveness of the controller, and the benefits of touch did not come at the expense of perceived workload. Our work shows the added value of considering experience in addition to traditional measures of performance, and demonstrates an effective and efficient method for gathering experience during inter-action with surface applications. We conclude by discussing how an understanding of this experience can help in designing touch applications.Item Metadata only Exploring physical information cloth on a multitouch table(ACM, 2011) Mikulecky, K.; Hancock, M.; Bosz, J.; Carpendale, S.We expand multitouch tabletop information exploration by placing 2D information on a physically-based cloth in a shallow 3D viewing environment. Instead of offering 2D information on a rigid window or screen, we place our information on a soft flexible cloth that can be draped, pulled, stretched, and folded with multiple fingers and hands, supporting any number of information views. Combining our multitouch flexible information cloth with simple manipulable objects provides a physically-based information viewing environment that offers similar advantages to complex detail-in-context viewing. Previous detail-in-context views can be re-created by draping cloth over virtual objects in this physics simulation, thereby approximating many of the existing techniques by providing zoomed-in information in the context of zoomed-out information. These detail-in-context views are approximated because, rather than use distortion, the draped cloth naturally drapes and folds showing magnified regions within a physically understandable context. In addition, the information cloth remains flexibly responsive, allowing one to tweak, unfold, and smooth out regions as desired.Item Metadata only Improving the Social Gaming Experience by Comparing Physical and Digital Tabletop Board Games(2012) Chang, Y.-L.B.; Hancock, M.; Scott, S.D.; Pape, J.; Graham, T.C.N.Item Metadata only Integrating 2D mouse emulation with 3D manipulation for visualizations on a multi-touch table.(ACM, 2010) Vlaming, L.; Collins, C.; Hancock, M.; Nacenta, M.; Isenberg, T.; Carpendale, S.We present the Rizzo, a multi-touch virtual mouse that has been designed to provide the fine grained interaction for information visualization on a multi-touch table. Our solution enables touch interaction for existing mouse-based visualizations. Previously, this transition to a multi-touch environment was difficult because the mouse emulation of touch surfaces is often insufficient to provide full information visualization functionality. We present a unified design, combining many Rizzos that have been designed not only to provide mouse capabilities but also to act as zoomable lenses that make precise information access feasible. The Rizzos and the information visualizations all exist within a touch-enabled 3D window management system. Our approach permits touch interaction with both the 3D windowing environment as well as with the contents of the individual windows contained therein. We describe an implementation of our technique that augments the VisLink 3D visualization environment to demonstrate how to enable multi-touch capabilities on all visualizations written with the popular prefuse visualization toolkit.Item Metadata only Overcoming Interaction Barriers in Large Public Displays Using Personal Devices(ACM, 2014) Cheung, V.; Watson, D.; Vermeulen, J.; Hancock, M.; Scott, S.D.This work presents a design space in which personal devices are used as a means to facilitate "socially safe", ad-hoc interaction with large public displays. Unlike most existing work that focuses on facilitating content placement and transfer, this approach aims at minimizing the effort required to initiate, sustain, and withdraw from interaction with a large public display, and to communicate these capabilities to passersby. We identify barriers hindering this process, and offer advice on overcoming them based on existing work and our own experiences with these displays. We illustrate how this design concept can be applied, and motivate applications in other domains.Item Metadata only Supporting Situation Awareness in Collaborative Tabletop Systems with Automation(ACM, 2014) Chang, Y.-L.B.; Scott, S.D.; Hancock, M.Human operators collaborating to complete complex tasks, such as a team of emergency response operators, need to maintain a high level of situation awareness to appropriate-ly and quickly respond to critical changes. Even though automation can help manage complex tasks and rapidly update information, it may create confusion that negatively impacts operators' situation awareness, and result in sub-optimal decisions. To improve situation awareness in co-located environments on digital tabletop computers, we developed an interactive event timeline that enables exploration of historical system events, using a collaborative digital board game as a case study. We conducted a user study to examine two factors, placement of timelines for multiple users and location of awareness feedback, to understand their impact on situation awareness. The study revealed that interaction with the timeline was correlated with improved situation awareness, and that displaying feedback both on the game board and timeline was the most preferred.