Todays standard input devices for graphical user interfaces, mouse and keyboard, cannot be utilized by users whose motor functions are limited. Examples include users suffering from motor restrictions due to illnesses and users in application domains with manual activities. This dissertation engages in the research area speech-controlled graphical user interfaces which aims at finding a solutio...

Graphical user interface design is a very visual process which requires graphical tools. Modern integrated development environments have text editors for writing code and graphical user interface editors for designing the user interface. In ISO 11783 systems this distinction between the program logic and the user interface elements is even more pronounced as the program is executed by the elect...

Most existing graphical user interfaces are usually designed for a fixed context of use, thus making them rather difficult to modify for other contexts of use, such as for other users, other platforms, and other environments. This paper addresses this problem by introducing a new visual design method for graphical users interfaces referred to as “visual design by (de)composition”. In this metho...

Effective on-line communication between cooperating users with the mediation of machines (Virtual Team concept) is a necessity in new-generation concurrent engineering design and manufacture systems. The communication means for solving this problem are natural language and graphics. Managing the graphical and natural language user interfaces is a task full of ill-structured problems for which t...

Modern UNIX-based graphical workstations still lack really graphical interfaces. Yet recreating existing UNIX tools with graphical interfaces may prove to be a prohibitive task. This paper describes the design and implementation of a set of tools that make the task of providing a graphical UNIX user interface easier. The main tool, called Perly, provides on-screen graphical buttons connected to...

Within computer science education, many educators are incorporating software testing activities into regular programming assignments. Tools like JUnit and its relatives make software testing tasks much easier, bringing them into the realm of even introductory students. At the same time, many introductory programming courses are now including graphical interfaces as part of student assignments t...

Standard personal digital assistant (PDA) graphical user interfaces (GUI) become unusable if used in complex applications, like graphical editors containing tens or hundreds of functions and manipulating with complex data structures. It is necessary to investigate new user interface design patterns and simplify the development process of complex mobile applications. This paper researches this a...

The Xerox Star, the first personal computer with a graphical user interface, was developed about twenty-five years ago. Seminal work on graphical interfaces even dates back to the 1960s. However, current techniques used for window management are merely variations of methods designed in the 1980s with very little improvements. Users are more and more confronted to the fact that the direct manipu...

An accurate model of the user is one of the most important factors impacting the success of adaptive user interfaces. However, the input information from the user may not be sufficient for construction of accurate user models. We propose epistemically active adaptive user interfaces that initiate subtle interactions with the user in order to collect new information about the user’s state based ...

How do we effectively understand graphical interfaces in order to act in the virtual ambient they create? Metaphors in user interfaces are meant to give the user a familiar context in which to act: an office with recycle bins, desktops, folders and files. The problem is that incoherence lies everywhere if we look beneath