Abstract. In recent years, the dramatic growth of the PDA and mobile phone market demonstrates that users are willing to be constrained to small displays, limited storage and battery life, slow CPU speeds and data transfer, in the hope of achieving truly portable access to electronic data. Most of the limitations that users experience with current devices will disappear in future generations. These changes will not have an effect on the primary user interface constraint: the display size. The actual screen size will not change, since users demand devices that can be easily carried around and held in one hand. The article presents a hybrid approach to the generation of adaptive UIs based on a linking strategy of hierarchies of graphs. The nodes of this graph consist of clustered UI elements.
Due to the diversity of display capabilities and input devices, mobile computing gadgets have caused a dramatic increase in the development effort of interactive services. User interface (UI) tailoring and multi platform access represent two promising concepts for coping with this challenge. The paper presents the MUSA (multiple user interfaces, single application) prototype system that addresses both issues by introducing an event-graph as basis of a UI tailoring process.
Keywords
Recent developments in embedded control systems promote the timed computation model following the principles of logical execution time (LET). Resulting control applications are time deterministic, value deterministic, and their properties may be subject to formal verification against a mathematical model of the control design. However, the timed computation model introduces inefficiencies to computation cycles. As the LET of a real-time control task requires being greater than its worst-case execution time and computed values are always propagated at the end of the LET, actuator updates are unnecessarily delayed. This makes the control cycle less responsive.In this paper, we present an approach that allows the defmition of task sequences for a timed computation model implemented by the timing definition language (TDL). Task sequences help minimizing timing delays between sensor readings and actuator updates (e.g., in estimator-based control systems), managing startup and shutdown phases of control systems, and providing mechanisms for error-detection in fault-tolerant systems.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.