Employing diagrams in the UI causes problems that don't exist in so called G r aphical User Interfaces. We are implementing a tool for generating editors for a certain class of diagrams from a speciication. Diagram Editors are n e e ded i n r e ally graphical UIs and interactive visual language environments. This paper addresses three aspects of the speciication of diagram editors. After highli...

For programmers who are not involved in the development of a graphical user interface (GUI), it is usually not an easy task to adapt or extend the GUI. In this paper a possible solution being based on the plug-in concept is proposed which makes extensions of the GUI and independent development of GUI components much easier. Furthermore, GUIs designed that way can be easily extended with individ...

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In modern object oriented computer systems the internal state of the entire system consists of the internal states of many objects probably distributed over a heterogeneous network of computers The man machine interaction in such an application is based on the visualization of states on one hand and the modi cation of states in combination with event generation on the other hand This paper desc...

In this essay I consider Graphical User Interfaces (guis) as instruments that generate spatiality according to the logic of the cartographic representation of reality. By analyzing the history of guis I explore how some latest generation interfaces can partly transform space into place by making use of a three-dimensional representation of reality. This is also made possible by the introduction...

The principal advances in graphics over the last ten years have been economic-inexpensive raster displays have made good-quality interactive graphics affordable in computer terminals, and together with high-performance microprocessors have led to the "workstation" with an integral display. There have also been gains in graphics hardware, such as improved color displays, raster printers, and ine...

We discuss our experience with linking (existing) reactive applications to X11 based graphical user interfaces. For implementing the user interface we choose to use the Tcl/Tk toolkit, whereas the application itself may be written in any language (even a declarative one) that provides means to perform primitive I/O. The application and the graphical user interface run as separate processes and ...

The most Human-Computer-Interfaces will be materialized by Graphical User Interfaces (GUI). With the growing complexity of the computer-based system, also their GUIs become more complex, accordingly making the test process more and more costly. The paper introduces a holistic view of fault modeling that can be carried out as a complementary step to system modeling, enabling a precise scalabilit...

G raphical user interfaces (GUIs) have become the dominant computer user interface paradigm during the past three decades. A typical system includes a computer with a bitmap display and a mouse or stylus for pointing and acting. Interaction is based upon selection and action at positions in the graphical display, guided by graphical content and the user’s intent. For example, the user can selec...

oriented textual output displayed on the screen was stored in the computer’s framebuffer. An access program could simply copy the contents of the framebuffer to a speech synthesizer, a Braille terminal or a Braille printer. Conversely, the contents of the framebuffer for a graphical interface are simple pixel values. To provide access to GUIs, it is necessary to intercept application output bef...