Browsing by Author "Tang, Charlotte"

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    EXPLORING MULTIMEDIA HISTORIES OF CASUAL INTERACTIONS
    (2002-12-06) Tang, Charlotte; McEwan, Gregor; Greenberg, Saul
    Many groupware systems now allow people to converse and casually interact through their computers in quite rich ways - through text, images, video, artifact sharing and so on. If these interactions are logged, we can offer these multimedia histories to a person in a manner that makes them easy to review. This is potentially beneficial for group members wishing to find and reflect on their past interactions, and for researchers investigating the nuances of online communities. Yet because we have little knowledge of what people would actually do with these histories, designing an effective history review system is difficult. Consequently, we conducted a user study, where people explored real data from an online community. Our study identified a set of tasks that people would do if they could review these histories of casual interaction. It also produced a list of parameters pertinent to how we could visualize these historical records in a tool. With the increasing popularity of computer-mediated casual interaction tools, this study provides an important guide for developing tools to visualize and analyze past multimedia conversations.
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    Human-Centered Design for Health Information Technology: A Qualitative Approach
    (IGI Global, 2011) Tang, Charlotte; Carpendale, Sheelagh
    This chapter presents issues that may arise in human-centered research in health care environments. The authors first discuss why human-centered approach is increasingly employed to study and to design health care technology. They then present some practical concerns that may arise when conducting qualitative research in medical settings, from research design, to data collection and data analysis, and to technology design. Many of these concerns were also experienced in their own human-centered field studies conducted in the last few years. The authors conclude the chapter by illustrating some of these issues using their own research case study that investigated nurses’ information flow in a hospital ward.
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    InfoFlow Framework for Evaluating New Healthcare Technologies
    (Taylor & Francis, 2010) Tang, Charlotte; Scott, Stacey D.; Carpendale, Sheelagh
    This article presents a framework of 6 distinct yet interrelated factors for describing information flow that arose from a combination of field studies in a hospital ward and a review of literature. These studies investigated the dynamics of nurses' information flow, focusing on shift change. The InfoFlow Framework's 6 interrelated factors that affect the information flow are information, personnel, artifacts, spatiality, temporality, and communication mode. The framework is presented as a tool for evaluating new health care technologies. The 6 factors and their interrelationships are described first. Next, this structure is applied as a tool to aid in the analysis of the data generated in a study that assesses technology in use. Then the use of the framework is illustrated by structuring it as a set of questions that can be used as a guide for other researchers to generate coherent descriptions of the information flow and to evaluate technology deployments. Finally, there is a discussion of areas where the InfoFlow framework may be applied to allow an evaluation of the extent to which the framework may be generalized to other settings.
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    VisSTREAM: VISUALIZING TEMPORAL MULTIMEDIA CONVERSATIONS
    (2002-02-12) Tang, Charlotte; Greenberg, Saul
    Casual interaction is recognized as the backbone of everyday collaboration, where a wealth of valuable information is exchanged by people in brief and impromptu but context-rich meetings. Within CSCW, many researchers strive to support casual interaction between distance-separated collaborators through specially designed groupware systems. Early versions of these systems, such as media spaces and instant messaging systems, presented only one or two media channels for supporting interpersonal awareness and resulting interactions. However, more recent systems offer many media channels in an effort to emulate the rich contextual information visible in the everyday world. One such system built in our laboratory is the Notification Collage, which lets people post various media elements to a publicly viewable electronic work surface. Media elements include text notes, images, slide shows, web pages, video snapshots, one's computer screen, and so on. The idea is that these rich information sources provide the group with awareness not only of each other's interpersonal state, but of interesting artifacts; the consequence of this awareness will be many casual interactions.