The 3D data, processed in radiology, requires interaction metaphors different from common user’s needs. In cooperation with medical institutions we have designed a Graphic User Interface (GUI) and Human Input Device (HID), that both address the special requirements of the users. For the GUI we designed new elements to enhances customizability. As a HID we developed an alternative approach for t...

Achieving basic nutritional recommendations for people living with HIV is important at all stages as the virus affects the immune system and renders an infected person to contract other infections easily. Poor nutrition strengthens the effects of HIV as malnutrition adds to deterioration of the immune system. This leads to a poor prognosis of the disease. Thus a tool to determine adequate amoun...

This document describes the design of the interface for the first MultiMatch prototype. This system aims at providing various user groups with multilingual access to a rich variety of cultural heritage resources (e.g. images, videos, web pages and structured texts). Specifically, this document describes the interface design process, a variety of relevant literature, the results of initial inter...

This paper describes the features that distinguish recognition based computer interfaces by considering the interaction process and using a simple model to assist in the definition of some of the terms associated with these interfaces. With reference to the user experience, Disobedience, Ambiguity, and Error-Proneness are described. The authors suggest that disobedience is a useful term that se...

We have designed an on-screen keyboard, operated by eye-gaze, for use by motor-impaired users. It enables interaction with unmodified standard Graphic User Interface (GUI) software written for ablebodied users, and it is not solely designed around the need to enter text. The keyboard will adapt automatically to the application context by, for example, loading a specific set of keys designed for...

In recent years the popularity of the touch user interface (TUI), has skyrocketed. There are currently no signs for this trend to diminish; to the contrary future vision videos from leading technology companies show a future relying even heavier on this method of input (e.g. Microsoft, 2009). However, reviews of TUI implementations point to a number of problems, including: lack of overview of a...

This paper is influenced by all web users that have a visual impairment disability and will focus on the implications of users with visual disabilities whilst using the web, specifically when concerned with using ecommerce websites. A significant amount of research will be conducted on the current usability guidelines and the problems that users with visual disabilities face whilst using the we...

In this paper we describe an experiment that compared the use of a Tangible User Interface (TUIs) in a constructivist fashion with a traditional learning activity. We carried out an experiment (N=40) with a 2x2 design: the first factor compared traditional instruction (“Tell & Practice”) with a constructivist activity (using the Preparation for Future learning framework; PFL). The second factor...

In this paper we will present an historical overview of tablet computing, graphical user interfaces (GUI) and hypertext regarding all its modifications within 50 years of development. The goal of this paper is to show the important progression and also to compare different aspects. Therefore we classified all developments into three main timetables within the 20 century, starting from the 1940 ...