The idea of metaphors has been a central and popular element in the design practice of graphical user interfaces. While the principle is commonly applied and discussed in the field of Graphical User Interfaces, its usage in the field of Tangible User Interfaces (TUIs) is not yet fully understood. This paper analyses the principle of metaphors in TUIs, based on the main definitions of interface ...

Manual regression testing of graphical user interfaces is a time consuming task that a family of tools known as capture/replay tools seeks to automate. This paper presents a case study that compares the costs and benefits of a state of the art capture/replay tool (Rational Functional Tester) to the costs and benefits of manual regression testing. Our findings suggest that, for projects with inf...

Interaction with virtual maps is a common task on tabletop interfaces, particularly in the context of command-andcontrol applications. In nearly all cases, widely known gestures such as pinch-to-zoom are employed. To explore alternatives and variations of this mode of interaction, we have defined five alternative gesture sets for the tasks of modifying the map view and selecting map objects in ...

User interfaces are becoming an integral component of usable interactive artificial intelligence systems. A high-bandwidth graphical interface between the user and the computer's representation of knowledge greatly facilitates intelligent human/computer interaction. When user input or inference modifies knowledge base assertions, computationally expensive cascaded updates often propagate throug...

ade4 is a multivariate data analysis package for the R statistical environment, and ade4TkGUI is a Tcl/Tk graphical user interface for the most essential methods of ade4. Both packages are available on CRAN. An overview of ade4TkGUI is presented, and the pros and cons of this approach are discussed. We conclude that command line interfaces (CLI) and graphical user interfaces (GUI) are complemen...

In the context of game engines with graphical user interfaces, shader programs for GPUs (graphics processing units) are an asset for game development that is often used by artists and game developers without knowledge of shader programming. Thus, it is important that non-programmers are enabled to explore and exploit the full potential of shader programs. To this end, we develop principles and ...

This paper presents a usability-testing plan for real-time QoS management. We employ a holistic Three Layer QoS (TRAQS) model that defines three perspectives for the negotiation of QoS. The TRAQS model allows the user to specify the desired QoS by using a QoS Parameter Taxonomy and an Application Taxonomy. For the specification of the desired QoS a variety of graphical and physical interfaces c...

Due to data-driven application nature and its increasing complexity, developing its user interface can be a repetitive and time-consuming activity. Consequently, developers tend to focus more on the user interface aspects and less on business related code. In this paper, we’re presenting an alternative approach to graphical user interface development for data-driven applications, that allows de...

Applications in scientiic computing operate with data of complex structure and graphical tools for data editing, browsing and visualization are necessary. Most approaches to generating user interfaces provide some interactive layout facility together with a specialized language for describing user interaction. Realistic automated generation approaches are largely lacking, especially for applica...

Adaptation to the available screen size is a recurrent problem in graphical user interface design. On the one hand it is not trivial for a designer to specify how a Graphical User Interface (GUI) should adapt; on the other hand it is very hard to construct a predictable adaptation algorithm that never leads to undesired user interface presentations. In this paper, we present a technique to desi...