Catálogo de publicaciones - libros

Always-on media spaces broadcast video between collaborators to provide mutual awareness and to encourage casual interaction. This video can be easily recorded on the fly as a video trace . Ostensibly, people can review this video history to gain a better idea of the activities and availability of their collaborators. Such systems are obviously highly contentious, as they raise significant privacy concerns. However, the ease of capturing video means that video trace systems will appear in the near future. To push the boundaries and encourage debate about video trace technologies within the CSCW community, we created TIMELINE, a highly effective visualization system that combines ideas in slit scanning as used in interactive art to allow people to easily and rapidly explore a video history in detail. We describe its design and implementation, and begin the debate by offering preliminary reflections on how it can be used and misused. To encourage this debate, TIMELINE is freely available for others to try.

In this paper, we explore various search tasks that are supported by a social bookmarking service. These bookmarking services hold great potential to powerfully combine personal tagging of information sources with interactive browsing, resulting in better social navigation. While there has been considerable interest in social tagging systems in recent years, little is known about their actual usage. In this paper, we present the results of a field study of a social bookmarking service that has been deployed in a large enterprise. We present new qualitative and quantitative data on how a corporate social tagging system was used, through both event logs (click level analysis) and interviews. We observed three types of search activities: community browsing, personal search, and explicit search. Community browsing was the most frequently used, and confirms the value of the social aspects of the system. We conclude that social bookmarking services support various kinds of exploratory search, and provide better personal bookmark management and enhance social navigation.

In this paper we analyse an apparently simple collaborative activity, that of passing an implement from one person to another. The particular case we consider is surgical operations where nurses and surgeons routinely pass instruments to one another. Through fine-grained analysis of specific instances we address,- the preparatory work engaged in prior to passing, the ways in which the layout of artefacts is organised with respect to the temporal ordering of the activity, and how this arrangement can be reconfigured in the light of problems and circumstances that arise in an operation. We examine how passing an implement is finely shaped within the course of its articulation with regard to emerging actions of the participants. We suggest that an analysis of fine details of seemingly simple activities with objects may have implications for our understanding of collaborative work, and a one or two key concepts that have informed the design of advanced solutions.

The rapidly expanding elderly population in Japan and other industrialized countries has posed an enormous challenge to the systems of healthcare that serve elderly citizens. This study examines naturally occurring interaction within elderly day care in Japan, and discusses the implications for developing robotic systems that can provide service in elderly care contexts. The interaction analysis focuses on prior-to-request and request behaviors involving elderly visitors and caregivers in multiparty settings. In particular, it delineates the ways caregivers’ displays of availability affects elderly visitors’ behavior prior to initiating a request, revealing that visitors observe caregivers prior to initiating a request, and initiation is contingent upon caregivers’ displayed availability. The findings are discussed in relation to our work in designing an autonomous and remote- controlled robotic system that can be employed in elderly day care centers and other service contexts.

We present efforts to explore the relatively underdeveloped area of digital photo display. Using examples from two empirical studies with family homes, we develop our results around three broad themes related to the display of photos and their arrangement. The first theme highlights the collaborative as well as individual work that goes into preparing photos for display. The second attends to the obligations families have to put particular photos on display. The third introduces the notion of curatorial control and the tensions that arise from one person controlling a home’s photo displays. Drawing on these themes, we go on to describe how we have used a critical design approach to open up the possibilities for future display innovations. Three critical design proposals are presented as sketches to illustrate the development of our ideas to date.

The concept of awareness has come to play a central role in CSCW research. The coordinative practices of displaying and monitoring have received attention and have led to different venues of research, from computational tool support, such as media spaces and event propagation mechanisms, to ethnographic studies of work. However, these studies have overlooked a different aspect of awareness practices: the identification of the social actors who should be monitored and the actors to whom their actions should be displayed . The focus of this paper is on how social actors answer the following questions: to whom should I display my actions? And, whose actions should I monitor? Ethnographic data from two software development teams are used to answer these questions. In addition, we illustrate how software developers’ work practices are influenced by three different factors: the organizational setting, the age of the project, and the software architecture.

In this paper, we concentrate on how conventions among practitioners are put at work for the sake of cooperation in those work settings where coordination is mediated at a large extent by complex webs of documental artifacts. Our case study focuses on coordinative conventions exhibited in the hospital domain and mediated by compound patient records. We conceive of the provision of document-mediated awareness information as a “learning device” by which these conventions can be made explicit in all those situations where practitioners need support in coping with and solving cooperative problems in the articulation of their activities. To enable such a context-dependent and usercentered provision of awareness, we also present and outline the WOAD framework that provides users and designers with a conceptual model and language aimed at facilitating the construction of a convention- and collaboration-aware layer on top of traditional architectures of electronic documental systems. To this aim, we take the case of the Electronic Patient Record (EPR) as paradigmatic.

This paper considers the nature of conflict in relation to the environments within which distributed teams cooperate. Effective conflict management can bring great benefits to distributed teams, while inadequate conflict resolution strategies can incur significant personal and resource costs. The increased geographical, cognitive and emotional distances between members can stimulate and amplify conflict. Parties may display disinhibited behaviour (flaming) or may be reluctant to accept reconciliatory overtures (low trust). These factors can be attributed to the impact of communication technology on social structures that underlie interaction. Shifting to face-to-face meetings can be impractical or involve prohibitive cost, so it is important to establish how best to deal with conflict in technologically-mediated settings. Dispute resolution practitioners (conciliators) have evolved strategies and techniques to construct and regulate “safe-spaces”; settings that are conducive to finding creative solutions to entrenched conflicts. Building on interviews with expert conciliators, we discuss the potential for learning from the structure and constraints of conciliation environments in order to improve conflict management through technologies.

Previous work has found that (a) when software is developed collaboratively, concurrent accesses to related pieces of code are made, and (b) when these accesses are coordinated asynchronously through a version control system, they result in increased defects because of conflicting concurrent changes. Previous findings also show that distance collaboration aggravates software-development problems and radical colocation reduces them. These results motivate a semi-synchronous distributed computersupported model that allows programmers creating code asynchronously to synchronously collaborate with each other to detect and resolve potentially conflicting tasks before they have completed the tasks. We describe, illustrate, and evaluate a new model designed to meet these requirements. Our results show that the model can catch conflicts at editing time that would be expensive to manage at later times.

Knowledge workers often need to find, organize, and work with heterogeneous resources from diverse services, information stores, and repositories. This paper analyzes two problems that knowledge workers frequently encounter: difficulty in finding all relevant resources across diverse services, and difficulty in formulating and executing searches for resources related to their current activity-of-interest. The Malibu project explores solutions to these problems through a dynamic peripheral display that aggregates knowledge resources from multiple services to support activity-centric work. Of particular interest is the ability to select a knowledge resource and use it as a metonym (a proxy) for its social-tagging metadata in a tag-based search for related resources among heterogeneous services. We evaluated our solutions to these two problems through convergent analyses of quantitative (data log) and qualitative (interview and discussion data) data. Our partial successes show the strength of these new ideas, and indicate areas for future research.