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Tabletops have the potential to provide new ways to support collaborative learning generally and, more specifically, to aid people in learning to collaborate more effectively. To achieve this potential, we need to gain understanding of how to design tabletop environments so that they capture relevant information about collaboration processes so that we can(More)
The tabletop computer interface has the potential to support idea generation by a group using the brainstorming technique. This paper describes the design and implementation of a table-top brainstorming system. To gain insights into its effectiveness, we conducted a user study which compared our system against a more conventional approach. We analysed the(More)
A key challenge for creating large interactive displays in public spaces is in the definition of ways for the user to interact that are effective and easy to learn. This paper presents the outcomes of user evaluation sessions designed to test a series of different gestures for people interacting with large displays in the public space. It is an initial step(More)
In all but the purest appliance interfaces, users need some of the fundamental core facilities for general computing interface elements: to change applications; change the files the application uses; and control which interface elements are present on the table. While these facilities have been refined for desktops, the particular affordances and(More)
Successfully conveying the interactivity of a Public Information Display (PID) can be the difference between a display that is used or not used by its audience. In this paper, we present an interactive PID called 'Cruiser Ribbon' that targets pedestrian traffic. We outline our interactive PID installation, the visual cues used to alert people of the(More)
This paper explores the nature of interfaces to support people in accessing their files at tabletop displays embedded in the environment. To do this, we designed a study comparing people's interaction with two very different classes of file system access interface: Focus, explicitly designed for tabletops, and the familiar hierarchical Windows Explorer. In(More)
Significant changes are taking place in the electric energy industry worldwide. Deregulation of the utilities will produce a tougher competitive environment for the suppliers of electricity. Increased demand for electrical energy will require better management of distribution. Suppliers will need to identify ways of supplying a better level of service at a(More)
There has long been recognition of the limitations of hierarchical file systems, particularly when people need collections of files, email and web pages for a new task. An asso-ciative file access mechanism offers promise in addressing these limitations. Such a mechanism is particularly appealing for personal file access at pervasive interaction devices,(More)