CHI

In this paper, we report the results of an empirical study of how people, as part of their daily work activities, go about to establish collaboration. We examine the empirical findings and relate them to existing research on CSCW session management models, ...

Although current online chat environments provide new opportunities for communication, they are quite constrained in their ability to convey many important pieces of social information, ranging from the number of participants in a conversation to the subtle ...

Designing and deploying groupware is difficult. Groupware evaluation and design are often approached from a single perspective, with a technologically-, individually-, or socially-centered focus. A study of Groupware Calendar Systems (GCSs) highlights the ...

The design and evaluation of a high performance soft keyboard for mobile systems are described. Using a model to predict the upper-bound text entry rate for soft keyboards, we designed a keyboard layout with a predicted upper-bound entry rate of 58.2 wpm. ...

Using traditional mobile input devices results in decreased effectiveness and efficiency. To improve usability issues a portable Non-Keyboard QWERTY touch-typing paradigm that supports the mobile touch-typing user is presented and investigated. It requires ...

Interest in pen-based user interfaces is growing rapidly. One potentially useful feature of pen-based user interfaces is gestures, that is, a mark or stroke that causes a command to execute. Unfortunately, it is difficult to design gestures that are easy 1) ...

An experiment was conducted to systematically investigate combined effects of controller, cursor and target size on multidimensional object manipulation in a virtual environment. It was found that it was the relative size of controller, cursor and target ...

We explore the use of the non-dominant hand to control a virtual camera while the dominant hand performs other tasks in a virtual 3D scene. Two experiments and an informal study are presented which evaluate this interaction style by comparing it to the ...

This paper reports empirical results from a study into the use of 2D widgets in 3D immersive virtual environments. Several researchers have proposed the use of 2D interaction techniques in 3D environments, however little empirical work has been done to test ...

We take as our premise that it is possible and desirable to design systems that support social processes. We describe Loops, a project which takes this approach to supporting computer-mediated communication (CMC) through structural and intemctive ...

Given the importance of credibility in computing products, the research on computer credibility is relatively small. To enhance knowledge about computers and credibility, we define key terms relating to computer credibility, synthesize the literature in ...

The past decades have seen huge improvements in computer systems but these have proved difficult to translate into comparable improvements in the usability and social integration of computers. We believe that the problem is a deeply rooted set of ...

Mobile workers need seamless access to communication and information services on portable devices. However current solutions overwhelm users with intrusive and ambiguous notifications. In this paper, we describe scaleable auditory techniques and a ...

We developed four widely different interfaces for users of Somewire, a prototype audio-only media space. We informally studied users experiences with the two screen- based interfaces. We prototyped a non-screen-based interface as an example of a novel ...

Whisper is a new wrist-worn handset, which is used by inserting the fingertip into the ear canal. A received signal is conveyed from a wrist-mounted actuator to the ear canal via the hand and a finger by bone conduction. The users voice is captured by a ...

We describe the i-LAND environment which constitutes an example of our vision of the workspaces of the future, in this case supporting cooperative work of dynamic teams with changing needs. i-LAND requires and provides new forms of human-computer ...

This paper describes the evolution, implementation, and use of logjam, a system for video logging. The system features a game-board that senses the location and identities of pieces placed upon it. The board is the interface that enables a group of people ...

With the proliferation of online multimedia content and the popularity of multimedia streaming systems, it is increasingly useful to be able to skim and browse multimedia quickly. A key technique that enables quick browsing of multimedia is time-...

Programmable Embodied Agents are portable, wireless, interactive devices embodying specific, differentiable, interactive characteristics. They take the form of identifiable characters who reside in the physical world and interact directly with users. They ...

We introduce the concept of a sympathetic inter$ace for controlling an animated synthetic character in a 3D virtual environment. A plush doll embedded with wireless sensors is used to manipulate the virtual character in an iconic and intentional manner. The ...

Recent debate has centered on the relative promise of focusing user-interface research on developing new metaphors and tools that enhance users abilities to directly manipulate objects versus directing effort toward developing interface agents that provide ...

Rotating a piece of paper while drawing is an integral and almost subconscious part of drawing with pencil and paper. In a similar manner, the advent of lightweight pen-based computers allow digital artwork to be rotated while drawing by rotating the ...

Current object-oriented drawing programs have an established way of drawing in which the shape of an object is controlled by manipulating control points. While the control points are intuitive in their basic use, it is not clear whether they make more ...

The inefficient use of complex computer systems has been widely reported. These studies show the persistence of inefficient methods despite many years of experience and formal training. To counteract this phenomenon, we present the design of a new course, ...

This paper describes an architecture for supporting interface attuchments - small interactive programs which are designed to augment the functionality of other applications. This architecture is designed to work with a diverse set of conventional ...

The VisMap system provides for visual manipulation of arbitrary off-the-shelf applications, through an applications graphical user interface. VisMaps API-independent control has advantages for tasks that can benefit from direct access to the functions of ...

Should programming languages use natural-language-like syntax? Under what circumstances? What sorts of errors do novice programmers make? Does using a natural- language-like programming language lead to user errors? In this study, we read the entire online ...

The IS0 9241, Part 9 Draft International Standard for testing computer pointing devices proposes an evaluation of performance and comfort. In this paper we evaluate the scientific validity and practicality of these dimensions for two pointing devices for ...

We can touch things, and our senses tell us when our hands are touching something. But most computer input devices cannot detect when the user touches or releases the device or some portion of the device. Thus, adding touch sensors to input devices offers ...

The proliferation of multiple toolbars and UI widgets around the perimeter of application windows is an indication that the traditional GUI design of a single menubar is not sufficient to support large scale applications with numerous functions. In this ...