Most graphical user interface (GUI) libraries forbid accessing UI elements from threads other than the UI event loop thread. Violating this requirement leads to a program crash or an inconsistent UI. Unfortunately, such errors are all too common in GUI programs. We present a polymorphic type and effect system that prevents non-UI threads from accessing UI objects or invoking UI-thread-only meth...

The idea of building a device out of separate parts is gaining more common practice in the software industry. Software parts are designed with the potential for reuse. The reuse of the software parts promises to reduce development cost and time. This process triggers some new usability issues, especially when the user interface (UI) is also designed as a complex of several parts. A study is car...

INTRODUCTION: We propose AudioVisual User Interfaces (AVUI), a novel type of UI linking interaction, sound and image. It extends the concept Graphical Interface (GUI) by adding interconnected OBJECTIVES: aim to situate AVUIs in relation identified relevant fields: H

Evolving a software system not only affects the source code responsible for the core application, but also the user interface. Unfortunately user interface code is often scattered through and entangled with the application code. In large and complex user-interfaces, this tangling renders the implementation complex and hard to maintain. Currently, the application needs to perform both the necess...

The incorporation of plastic and adaptive user-interfaces into the model-based paradigm requires a new, more flexible modeling formalism. Rather than modeling the user-interface as a set of static structures and mappings, the UI should be modeled as a set of design preferences. Preferences are frequently many-toone or many-to-many relationships that elude conventional UI modeling, which has lar...

The user interface design of smart phone is often too simple in logic that the taxonomy of tasks frequently performed is the only basis and the UI allow the user to add their favorite Apps as they want. However, with too many Apps available for smart phone users but not many of them are used frequently, the convenience of smart phone usage can and should be developed not just by the predefined ...

We describe BBookX, a web-based tool that uses a humancomputing approach to facilitate the creation of open source textbooks. The goal of BBookX is to create a system that can search various Open Educational Resource (OER) repositories such as Wikipedia, based on a set of user-generated criteria, and return various resources that can be combined, remixed, and re-used to support specific learnin...

Mathematical notation is becoming more important as software is more often used in day-to-day life. Schools are starting to support e-learning, science is penetrating WWW and search engines can handle more complex questions. We have evaluated several applications which support mathematical input and could be used for graphical user interface (UI) of a mathematical search engine – EgoMath. None ...

Teleoperation (TO) is an important step in the new technologies that able robots to operate with human control and supervision. TO provides a highly safe robot operation in certain activities. Actually, the main problem is the skill required to operate these systems: The user requires both, a high knowledge about the teleoperated system “TS” (commands, controls, interpretation of multiple infor...

Today's User Interfaces (UIs) are complex software components, which play an essential role in the usability of an application. The development of UIs requires therefore, not only guidelines and best practice reports, but also a development process including the elaboration of visual models and a standardized notation for this visualization. Based on a UML extension for Web applications of prev...