May 10, 2012 @ 11:30, Room: Ballroom E
Chair: David Dearman, Nokia Research Center, USA
XICE Windowing Toolkit: Seamless Display Annexation - ToCHI
Contribution & Benefit: Presents a vision for safer, flexible, ubiquitous nomadic computing. Demonstrates a resource-efficient approach to annexing screens in the environment. The next level of mobile computing.
Abstract » Users are increasingly nomadic, carrying computing power with them. To gain rich input and output, users could annex displays and input devices when available, but annexing via VGA cable is insufficient. This article introduces XICE, which uses wireless networks to connect portable devices to display servers. Network connections eliminate cables, allow multiple people to share a display, and ease input annexation. XICE mitigates potentially malicious input, and facilitates comfortable viewing on a variety of displays via view-independent coordinates. The XICE-distributed graphics model greatly reduces portable device CPU usage and extends portable device battery life.
ReticularSpaces: Activity-Based Computing Support for Physically Distributed and Collaborative Smart Spaces - Paper
Contribution & Benefit: ReticularSpaces extends smart spaces technology with Activity-Based Computing. It offers a unified user interface across multiple displays designed to support complex information management, collaboration and mobility.
Abstract » Smart spaces research focuses on technology for multiple displays and devices for collocated participants. In most approaches, however, users have to cope with heterogeneous interfaces and information organization, as well as a lack of support for collaboration with mobile and remote users outside the smart space. In this paper, we present ReticularSpaces; a multi-display smart space system built on the principles of activity-based computing. The focus of ReticularSpaces is to support: (i) unified interaction with applications and documents through ReticularUI, a novel distributed user interfaces design; (ii) management of the complexity of tasks between users and displays; (iii) mobile users in a local, remote or `nomadic' settings; and (iv) collaboration among local and remote users. We describe the motivation, design, and architecture of ReticularSpaces, and report from a preliminary feasibility study. The study shows that participants found ReticularSpaces useful and effective, but at the same time reveals new areas for research on smart environments.
ACMRegional Undo/Redo Techniques for Large Interactive Surfaces - Paper
Contribution & Benefit: Explores the problem of undo/redo techniques on large interactive surfaces in co-located collaborative work. Provides interaction designers with design recommendations for regional undo/redo techniques.
Abstract » When multiple users are simultaneously sharing a workspace, it is not always clear what should happen when a user invokes an undo action. In this paper we explore different user interfaces for undo/redo for co-located collaborative workspaces, such as large interactive whiteboards. A preliminary study revealed that users expect neither a global nor personal undo, but rather a regional undo. We propose and evaluate three automatic regional undo/redo techniques (clustering, workspace, field of view) designed for a large interactive whiteboard. The results of the evaluation showed that an undo technique based on users� field of view was most preferred, while the content-based clustering technique produced most errors. We conclude with potential improvements to the developed techniques, and propose a set of design recommendations for implementing regional undo/redo on large interactive surfaces.
ACMTangible Remote Controllers for Wall-Size Displays - Paper
Contribution & Benefit: Describes customizable tangible remote controllers to interact with wall-size displays. Results from a controlled user study support their eyes-free use for visual exploration tasks.
Abstract » We explore the use of customizable tangible remote controllers for interacting with wall-size displays. Such controllers are especially suited to visual exploration tasks where users need to move to see details of complex visualizations. In addition, we conducted a controlled user study suggesting that tangibles make it easier for users to focus on the visual display while they interact. We explain how to build such controllers using off-the-shelf touch tablets and describe a sample application that supports multiple dynamic queries.
ACM