Publications

By Scott Carter (Clear Search)

2008
Publication Details
  • Social Mobile Media Workshop
  • Aug 1, 2008

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Mobile media applications need to balance user and group goals, attentional constraints, and limited screen real estate. In this paper, we describe the development and testing of two application sketches designed to explore these tradeoffs. The first is retrospective and time- based and the second is prospective and space-based. We found that attentional demands dominate and mobile media applications should therefore be lightweight and hands-free as much as possible.

Exiting the Cleanroom: On Ecological Validity and Ubiquitous Computing

Publication Details
  • Human-Computer Interaction Journal
  • Feb 15, 2008

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Over the past decade and a half, corporations and academies have invested considerable time and money in the realization of ubiquitous computing. Yet design approaches that yield ecologically valid understandings of ubiquitous computing systems, which can help designers make design decisions based on how systems perform in the context of actual experience, remain rare. The central question underlying this paper is: what barriers stand in the way of real-world, ecologically valid design for ubicomp? Using a literature survey and interviews with 28 developers, we illustrate how issues of sensing and scale cause ubicomp systems to resist iteration, prototype creation, and ecologically valid evaluation. In particular, we found that developers have difficulty creating prototypes that are both robust enough for realistic use and able to handle ambiguity and error, and that they struggle to gather useful data from evaluations either because critical events occur infrequently, because the level of use necessary to evaluate the system is difficult to maintain, or because the evaluation itself interferes with use of the system. We outline pitfalls for developers to avoid as well as practical solutions, and we draw on our results to outline research challenges for the future. Crucially, we do not argue for particular processes, sets of metrics, or intended outcomes but rather focus on prototyping tools and evaluation methods that support realistic use in realistic settings that can be selected according to the needs and goals of a particular developer or researcher.
2007

Embodied Meeting Support: Mobile, Tangible, Senseable Interaction in Smart Environments

Publication Details
  • Workshop at Ubicomp 2007
  • Sep 16, 2007

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The past two years at UbiComp, our workshops on design and usability in next generation conference rooms engendered lively conversations in the community of people working in smart environments. The community is clearly vital and growing. This year we would like to build on the energy from previous workshops while taking on a more interactive and exploratory format. The theme for this workshop is "embodied meeting support" and includes three tracks: mobile interaction, tangible interaction, and sensing in smart environments. We encourage participants to present work that focuses on one track or that attempts to bridge multiple tracks.
Publication Details
  • CHI 2007
  • Apr 28, 2007

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We present the iterative design of Momento, a tool that provides integrated support for situated evaluation of ubiquitous computing applications. We derived requirements for Momento from a user-centered design process that included interviews, observations and field studies of early versions of the tool. Motivated by our findings, Momento supports remote testing of ubicomp applications, helps with participant adoption and retention by minimizing the need for new hardware, and supports mid-to-long term studies to address infrequently occurring data. Also, Momento can gather log data, experience sampling, diary, and other qualitative data.
2004

Digital Graffiti: Public Annotation of Multimedia Content

Publication Details
  • CHI 2004, Vienna, Austria, April 24-29, 2004. New York: ACM Publications.
  • Feb 26, 2004

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Our physical environment is increasingly filled with multimedia content on situated, community public displays. We are designing methods for people to post and acquire digital information to and from public digital displays, and to modify and annotate previously posted content to create publicly observable threads. We support in-the-moment and on-site "person-to-place-to-people-to-persons" content interaction, annotation, augmentation and publication. We draw design inspiration from field work observations of how people remove, modify and mark up paper postings. We present our initial designs in this arena, and some initial user reactions.
2003

Palimpsests on Public View:Annotating Community Content with Personal Devices

Publication Details
  • UBICOMP, Seattle, October 12-15th
  • Oct 12, 2003

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This demonstration introduces UbiComp attendees to a system for content annotation and open-air, social blogging on interactive, publicly situated, digital poster boards using public and personal devices. We describe our motivation, a scenario of use, our prototype, and an outline of the demonstration.