22,198 research outputs found
Comparing Horizontal and Vertical Surfaces for a Collaborative Design Task
We investigate the use of different surface orientations for collaborative design tasks. Specifically, we compare horizontal and vertical surface orientations used by dyads performing a collaborative design task while standing. We investigate how the display orientation influences group participation including face-to-face contact, total discussion, and equality of physical and verbal participation among participants. Our results suggest that vertical displays better support face-to-face contact whereas side-by-side arrangements encourage more discussion. However, display orientation has little impact on equality of verbal and physical participation, and users do not consistently prefer one orientation over the other. Based on our findings, we suggest that further investigation into the differences between horizontal and vertical orientations is warranted
How do interactive tabletop systems influence collaboration?
This paper examines some aspects of the usefulness of interactive tabletop systems, if and how these impact collaboration. We chose creative problem solving such as brainstorming as an application framework to test several collaborative media: the use of pen-and-paper tools, the ‘‘around-the-table’’ form factor, the digital tabletop interface, the attractiveness of interaction styles. Eighty subjects in total (20 groups of four members) participated in the experiments. The evaluation criteria were task performance, collaboration patterns (especially equity of contributions), and users’ subjective experience. The ‘‘aroundthe-table’’ form factor, which is hypothesized to promote social comparison, increased performance and improved collaboration through an increase of equity. Moreover, the attractiveness of the tabletop device improved subjective experience and increased motivation to engage in the task. However, designing attractiveness seems a highly challenging issue, since overly attractive interfaces may distract users from the task
When the fingers do the talking: A study of group participation for different kinds of shareable surfaces
and other research outputs When the fingers do the talking: A study of group par-ticipation for different kinds of shareable surface
The effect of representation location on interaction in a tangible learning environment
Drawing on the 'representation' TUI framework [21], this paper reports a study that investigated the concept of 'representation location' and its effect on interaction and learning. A reacTIVision-based tangible interface was designed and developed to support children learning about the behaviour of light. Children aged eleven years worked with the environment in groups of three. Findings suggest that different representation locations lend themselves to different levels of abstraction and engender different forms and levels of activity, particularly with respect to speed of dynamics and differences in group awareness. Furthermore, the studies illustrated interaction effects according to different physical correspondence metaphors used, particularly with respect to combining familiar physical objects with digital--based table-top representation. The implications of these findings for learning are discussed
An in-the-wild study of learning to brainstorm: Comparing cards, tabletops and wall displays in the classroom
© 2016 The Author 2016. Published by Oxford University Press on behalf of The British Computer Society. Single display interactive groupware interfaces have the potential to effectively support small group work in classrooms. Our work aimed to gain understanding needed to realize that potential. First, we wanted to study how learners use these large interactive displays, compared with a more traditional method within classrooms. Second, we wanted to fill gaps in the current understanding of the effectiveness of interactive tables versus walls. Third, we wanted to do this out of the laboratory setting, in authentic classrooms, with their associated constraints. We conducted an in-the-wild study, with 51 design students, working in 14 groups, learning the brainstorming technique. Each group practiced brainstorming in three classrooms: one with vertical displays (walls); another with multi-touch tabletops; and the third with pens and index cards. The published literature suggested that tabletops would be better than the other conditions for key factors of cooperative participation, mutual awareness, maintaining interest and affective measures. Contrary to this, we found that the horizontal and vertical displays both had similar levels of benefit over the conventional method. It was only for affective measures that tabletops were better than walls. All conditions were similar for our several measures of outcome quality. We discuss the implications of our findings for designing future classrooms
Unimanual and Bimanual Weight Perception of Virtual Objects with a new Multi-finger Haptic Interface
Accurate weight perception is important particularly in tasks where the user has to apply vertical forces to ensure safe landing of a fragile object or precise penetration of a surface with a probe. Moreover, depending on physical properties of objects such as weight and size we may switch between unimanual and bimanual manipulation during a task. Research has shown that bimanual manipulation of real objects results in a misperception of their weight: they tend to feel lighter than similarly heavy objects which are handled with one hand only [8]. Effective simulation of bimanual manipulation with desktop haptic interfaces should be able to replicate this effect of bimanual manipulation on weight perception. Here, we present the MasterFinger-2, a new multi-finger haptic interface allowing bimanual manipulation of virtual objects with precision grip and we conduct weight discrimination experiments to evaluate its capacity to simulate unimanual and bimanual weight. We found that the bimanual ‘lighter’ bias is also observed with the MasterFinger-2 but the sensitivity to changes of virtual weights deteriorated
Supporting collaborative work using interactive tabletop
PhD ThesisCollaborative working is a key of success for organisations. People work together around
tables at work, home, school, and coffee shops. With the explosion of the internet and computer
systems, there are a variety of tools to support collaboration in groups, such as groupware,
and tools that support online meetings. However, in the case of co-located meetings
and face-to-face situations, facial expressions, body language, and the verbal communications
have significant influence on the group decision making process. Often people have
a natural preference for traditional pen-and-paper-based decision support solutions in such
situations. Thus, it is a challenge to implement tools that rely advanced technological interfaces,
such as interactive multi-touch tabletops, to support collaborative work.
This thesis proposes a novel tabletop application to support group work and investigates
the effectiveness and usability of the proposed system. The requirements for the developed
system are based on a review of previous literature and also on requirements elicited from
potential users. The innovative aspect of our system is that it allows the use of personal devices
that allow some level of privacy for the participants in the group work. We expect that
the personal devices may contribute to the effectiveness of the use of tabletops to support
collaborative work.
We chose for the purpose of evaluation experiment the collaborative development of
mind maps by groups, which has been investigated earlier as a representative form of collaborative
work. Two controlled laboratory experiments were designed to examine the usability
features and associated emotional attitudes for the tabletop mind map application in
comparison with the conventional pen-and-paper approach in the context of collaborative
work. The evaluation clearly indicates that the combination of the tabletop and personal
devices support and encourage multiple people working collaboratively. The comparison of
the associated emotional attitudes indicates that the interactive tabletop facilitates the active
involvement of participants in the group decision making significantly more than the use
of the pen-and-paper conditions. The work reported here contributes significantly to our
understanding of the usability and effectiveness of interactive tabletop applications in the
context of supporting of collaborative work.The Royal Thai governmen
Factors influencing visual attention switch in multi-display user interfaces: a survey
Multi-display User Interfaces (MDUIs) enable people to take advantage of the different characteristics of different display categories. For example, combining mobile and large displays within the same system enables users to interact with user interface elements locally while simultaneously having a large display space to show data. Although there is a large potential gain in performance and comfort, there is at least one main drawback that can override the benefits of MDUIs: the visual and physical separation between displays requires that users perform visual attention switches between displays. In this paper, we present a survey and analysis of existing data and classifications to identify factors that can affect visual attention switch in MDUIs. Our analysis and taxonomy bring attention to the often ignored implications of visual attention switch and collect existing evidence to facilitate research and implementation of effective MDUIs.Postprin
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