Project Index Accessibility Books with Voices Cha-Cha Context Fabric CrossWeaver Damask DENIM and SILK Designers' Outpost Flamenco Geney IC2D IC2Hear Lindi NotePals Papier-Mâché Quill and GDT SATIN SUEDE SCTEE T-SQUAIR Topiary UISPeR WebQuilt WebTango Featured Papers ASSETS 2002 CHI 2001 CHI 2002 CHI 2003 CHI 2004 CHI 2005 CUU 2003 INTERACT 2003 PUI 2001 PUI 2003 UbiComp 2002 UbiComp 2003 UIST 2001 UIST 2002 UIST 2003 UIST 2004

Long Papers Stuck in the Middle: The Challenges of User-Centered Design and Evaluation for Middleware We have good techniques for designing and evaluating interactive applications, however our techniques for designing and evaluating infrastructure intended to support these applications are much less well formed. We look at how traditional evaluation techniques are fail to support this infrastructure evaluation and present lessons from our own experience and suggestions for appropriate evaluation techniques. project details | PDF Two Worlds Apart: Briding the Gap Between Physical and Virtual Media for Distributed Design Collaboration The Distributed Designers' Outpost is a distributed collaboration system. The system provides a large shared workspace between two remote locations, and supports physical Post-it notes as input. It has two mechanisms for coordination and awareness: transient ink input for gestures and a blue shadow of the remote collaborator for presence. project details | PDF Do you see what I hear? The design and evaluation of two visual sound displays for the deaf We designed and evaluated two visual displays for providing information about environmental audio to deaf individuals. Our design focuses on non-speech sound such as ringing phones and knocking. A controlled experiment involving deaf participants found neither display to be significantly distracting and allowed deaf participants to detect sounds at 89% accuracy in a lab setting. project details | PDF Books with Voices Books with Voices provides bar-code augmented paper transcripts enabling fast, random access to digital video interviews on a PDA. The system is based on a contextual inquiry of oral history practices. project details | PDF Heuristic Evaluation of Ambient Displays Ambient displays are abstract and aesthetic peripheral displays portraying non-critical information on the periphery of a user's attention. There has been little work focused on the evaluation of these types of displays. We adapted a low-cost evaluation technique, heuristic evaluation, and defined a modifed set of heuristics. We present these new heuristics and a study that they are useful in identifying usability issues with ambient displays. project details | PDF Faceted Metadata for Image Search and Browsing The Flamenco interface allows users to navigate explicitly along conceptual dimensions that describe the contents of an image collection. A usability study with 32 art history student participants compares this approach to a standard image search interface, finding that 90% preferred the metadata approach overall, 97% said that it helped them learn more about the collection, 75% found it more flexible, and 72% found it easier to use. project details | PDF Peephole Displays: Pen Interaction on Spatially Aware Handheld Computers Combining pen interaction with position-tracked displays yields a new family of two-handed interaction techniques, such as drawing or editing objects larger than the screen or dragging and dropping in 3-D. It also enables the implementation of personal portable information spaces. project details Short Papers EEWWW!! : Tangible Interfaces for 3D Navigation into the Human Body Tangible interfaces have the potential to support learning for non-expert users, ease 3D navigation, and foster collaboration. We developed two physical devices aimed at school children for navigating a 3D virtual model of the human body. Results from a 40 subject user study suggest that these devices can encourage collaboration and improve the learnability of a navigational interface. PDF Efficient User Interest Estimation in Fisheye Views We present a new technique for efficiently computing Degree-of-Interest distributions to inform the visualization of graph-structured data. The technique is independent of the interest distribution used, and enables fluid interaction with very large data sets (over 100,000 nodes). PDF Who Wants to Know What When? Privacy Preference Determinants in Ubiquitous Computing We report on the design and analysis of a questionnaire-based study of the relative importance of two factors -- the identity of the inquirer and the user's situation at the time of inquiry -- in determining the preferred accuracy of personal information disclosed through a ubiquitous computing system. PDF Paper or Interactive? A Study of Prototyping Techniques for Ubiquitous Computing Environments We studied the effects of varying the fidelity and automation levels of a Ubicomp application prototype. Our results show that the interactive prototype captured the same usability issues that the paper prototype studies did and more. We found that paper prototyping is insufficient for supporting unique Ubicomp requirements, such as scalability, but a prototype with higher fidelity and automation levels can enhance the quality of interaction data available for evaluation. PDF SeismoSpin: A Physical Instrument for Digital Data SeismoSpin is a novel instrument and interactive visualization for browsing catalogs of earthquake data, designed around a DJ metaphor. The disc-and-slider input device allows responsive variable-speed playback and selection of earthquake events on time scales from seconds to decades. This technique can be applied to navigation of time-series data in general. PDF iCAP: An Informal Tool for Interactive Prototyping of Context-Aware Applications iCAP is a system that assists users in prototyping context-aware applications. iCAP supports sketching for creating input and output devices, and using these devices to design interaction rules, which can be prototyped in a simulated or real context-aware environment. PDF You’re Getting Warmer! How Proximity Information Affects Search Behavior in Physical Spaces Based upon field studies with Bay Area firefighters, we have designed, prototyped, and run user tests on the first iteration of the Buddy System, a context-aware proximity-sensing application with the long-term goal of helping firefighters stay close enough together to improve safety conditions in structure fire environments. We discuss our user testing results in which we found changes in user behavior and search patterns while using the Buddy System. project details | PDF Tutorial Information Visualization: Principles, Promise, and Pragmatics This tutorial will take a critical stance towards the field of information visualization. Rather than survey existing approaches, we will analyze the factors contribute to success or lack thereof, as a means to determine how to devise future successful visualizations. Criteria for success in this analysis are either positive results from usability studies or wide adoption by the target user population. tutorial details

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