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We explore some of the characteristics of multimodal input interaction spaces for notification systems within a multi-tasking environment like a command and control center using two promising interaction methods: gestures and touch based input through a laboratory experiment comparing both techniques. Results of our study suggest that gestures are better suited for multi-tasking situations because...
In today's continuously changing markets newly developed products often do not meet the demands and expectations of customers. Research on this problem identified a large gap between developer and user expectations. Approaches to bridge this gap are to provide the developers with better information on product usage and to create a fast feedback cycle that helps tackling usage problems. Therefore,...
An agent structure is presented for communication between users and agent systems through multiple communication modes. Two application systems are also presented; and e-mail monitoring system for keeping track of the user's e-mail while the user is away from the office, and a Web-based event monitoring system for monitoring events such as weather alerts.
The usability is being considered an incisive factor of the application's success of mobile computation segment, it is based on user experience conception limitation, so any techniques, method or idea which could improve the mobile user experience, must be carefully studied. The Vaire tool uses Mandos method of interaction for infrastructure support and together they propose a new interaction form...
We are interested in whether humans create a model of their partner when they jointly manipulate an object in a virtual task without haptic feedback. In such a scenario the partner is perceived as a disturbance because she/he is responsible for inconsistencies between the visual and proprioceptive feedback of the individual. To gain basic knowledge on the predictability of such disturbances we compare...
Given its current state of the art, model-based UI development (MBDUI) is able to fulfill the major requirements of desktop and mobile applications, such as form-based user interfaces that adapt to the actual context of use. More recent research deals with the development of 3D interactive multimodal environments. Though user-centered design is more and more driving the design of these environments,...
Human interaction like entering some data, making decisions etc. has to be dealt with as an integral part of today's business processes and the supporting IT likewise. Hence, human interaction leads to an increased complexity in software development and software systems. Current business- and model-driven development approaches provide promising means to deal with this complexity. Diverse aspects...
We present in this paper a web-based version of a scrabble game, describing its architecture and some implementation details. This architecture makes possible a high degree of interactivity, so that the players perceive the game as being played in real-time. Furthermore, no client-side plug-in or applet issued. These properties are achieved by means of a carefully designed architecture that uses AJAX...
As the variety in network service platforms and end user devices grows rapidly, content providers must constantly adapt their production system to support these new technologies. In this paper, we present a middleware platform for deploying highly interactive (television) applications over a diverse collection of networks and end user devices. As the user interface of such interactive applications...
Theoretical computer science has been occupied with formal methods since the beginning. It has had its share of challenges, though. Often, excessive additional work is required to re-specify applications precisely in a new formalism, so that they can be analyzed algorithmically. With more model-based software engineering, this may have changed. In many instances, specifications are now complete and...
There is an increasing interest in computer-based visualizations to provide insights and ease understandings of complex information. However, many of the proposed visualization tools/techniques seldom find real use in practice. The main reason is that they do not adequately address the issue of easing comprehensibility of underlying information. Through a case study with two static software visualization...
This paper proposes improving the usability of HTA (hierarchical task analysis) chart through redefinition. The plans in the existing HTA chart (HTAe) are replaced with symbols giving a proposed representation of HTA chart (HTAs). An empirical experiment was done on both types of chart, the HTAe and the HTAs, to see whether there is an improvement on the usability of HTA chart. An analysis was done...
Interactive television (iTV) is the convergence of television with digital media technologies. iTV must be treated as a unique medium with its own set of constraints and opportunities. A set of principles to follow, when designing iTV applications, is presented. Heuristics to be applied when evaluating iTV applicationspsila usability is described.
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