Browsing by Author "Rounding, Michael"
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- ItemOpen AccessGROUPLAB AT SKIGRAPH(2000-03-21) Boyle, Michael; Kaasten, Shaun; Rounding, Michael; Tam, James; Zanella, Ana; Greenberg, Saul; Carpendale, Sheelagh; Maurer, FrankThe Western Computer Graphics Symposium, nicknamed 'SkiGraph', is an annual professional meeting comprising mostly graphics researchers and their graduate students from Western Canada. In 2000, several Western Canadian researchers in Human Computer Interaction: Saul Greenberg (U.Calgary), Carl Gutwin (U. Saskatchewan), Kori Inkpen (Simon Fraser) and Sheelagh Carpendale (U. Calgary) agreed to use Skigraph as a way to get themselves and their graduate students together, where students would present papers describing their research. Because it was important for all graduate students to share their ideas, the papers written could range from identification of research areas and tentative proposals of research problems all the way to detailed results from mature work. This research report collects five research papers by students at Grouplab to SkiGraph (Grouplab is the laboratory for human computer interaction research at the University of Calgary). The papers are listed below. In all cases, the students are the first author followed by faculty members who have supervised or contributed to the work in one way or another. Individual papers may be cited directly by including the following information.
- ItemOpen AccessGroupware Plug-ins: A Case Study of Extending Collaboration Functionality through Media Items(2006-02-23) McEwan, Gregor; Greenberg, Saul; Rounding, Michael; Boyle, MichaelGroupware normally offers only fixed functionality, which can be a poor match to the actual needs of particular group. We argue that groupware should be extensible by third party developers, and describe groupware plug-ins as a method that enables this. Using the Community Bar (CB) as a case study, we illustrate an easy-to-program extensible groupware architecture. Unlike single user plug-ins, CB groupware plug-ins automatically share and populate a distributed data structure, using a distributed Model View Controller pattern to simplify programming. Several 3rd party plugins illustrate what people can create in practice.
- ItemOpen AccessTHE NOTIFICATION COLLAGE: POSTING INFORMATION TO PUBLIC AND PERSONAL DISPLAYS(2000-09-14) Greenberg, Saul; Rounding, MichaelThe Notification Collage (NC) is a groupware system where distributed and co-located colleagues comprising a small community post media elements onto a real-time collaborative surface that all members can see. Akin to collages of information found on public bulletin boards, NC randomly places incoming elements onto this surface. People can post assorted media: live video from desktop cameras; editable sticky notes; activity indicators; slide shows displaying a series of digital photos, snapshots of a person's digital desktop, and web page thumbnails. User experiences show that NC becomes a rich resource for awareness and collaboration. Community members use it to indicate their presence to others by posting live video onto it. They regularly act on this information by engaging in text and video conversations. Because others can overhear these conversations, these become opportunities to join in. They also post items they believe will be interesting to others, such as vacation photos. People also use NC somewhat differently when it is displayed on a large public screen than when it appears on a personal computer. Under the covers, the system works by propagating and storing information through a combined shared dictionary/notification server architecture.
- ItemOpen AccessON THE EFFECTS OF VISUAL CUES IN COMPREHENDING DISTORTIONS(2000-10-12) Zanella, Anna; Rounding, Michael; Carpendale, SheelaghAs the primary metaphor for computer use shifts from an extension of the personal desktop to a gateway into a vast information space, representing this expanse of information on our relatively small screens is becoming increasingly problematic. One possible solution for this screen real estate problem is to make multi-scale presentations by magnifying areas of interest and compressing others. The creation of these presentations makes use of some form of distortion. Distortion in turn changes the way in which information can accurately be read. In this paper we describe a study about relative difficulty in reading distortions. We investigate the effect of introducing viewing cues such as the cartographic grid and shading on people's ability to interpret distortions. We look at two interpretation issues: whether people can locate the region of magnification and whether people can read changes in degree of magnification of these regions. We present the findings of this study and a discussion of its results.